150 is the natural number following 149 and preceding 151.

Cardinal	One hundred [and] fifty
Ordinal	150th
Factorization
Divisors	2, 3, 5, 6, 10, 15, 25, 30, 50, 75
Roman numeral	CL
Binary	10010110
Hexadecimal	96

One hundred fifty is the sum of eight consecutive primes (7 + 11 + 13 + 17 + 19 + 23 + 29 + 31). Given 150, the Mertens function returns 0. 150 is a Harshad number.

The 150th anniversary of a town, business, or like organization is called a sesquicentennial. (The prefix "sesqui-" means "and a half".)

One hundred fifty is also:

• The number of Psalms in the Holy Bible. The last Psalm, Psalm 150, is perhaps the Psalm most often set to music.
• The number of sons of Ulam, who were combat archers, in the Census of the men of Israel upon return from exile (Holy Bible, 1 Chronicles 8:40). Also, the number of sons of Parosh and Zechariah at the Census upon return from Babylonia (Ezra 8:3).
• The model number of the Ford F-150 truck.
• The number of degrees in the quincunx astrological aspect explored by Johannes Kepler.
• The year AD 150 or 150 BC.

Other numbers in the 150s

One hundred fifty-one has its own article.

One hundred fifty-two (152, CLII) is the natural number following one hundred fifty-one and preceding one hundred fifty-three. It is a composite number, and its factorization is

This number is the sum of four consecutive primes (31 + 37 + 41 + 43). It is a Harshad number. It is a nontotient since there is no integer with 152 coprimes below it.

One hundred fifty-two is also:

• The year AD 152 or 152 BC.

One hundred fifty-three now has its own article.

One hundred fifty-four (154, CLIV) is the natural number following one hundred fifty-three and preceding one hundred fifty-five. It is a composite number, and its factorization

makes it a sphenic number. It is also a nonagonal number. It is a nontotient since there is no integer with 154 coprimes below it, and a self number since there is no integer which added up to its base 10 digits results in 154.

One hundred fifty-four is also:

• The year AD 154 or 154 BC.

One hundred fifty-five (155, CLV) is the natural number following one hundred fifty-four and preceding one hundred fifty-six. It is a composite number, and its factorization is

One hundred fifty-five is also:

• The designation of some spur routes of Interstate 55.
• The year AD 155 or 155 BC.
• The maximum possible score in a single break in snooker, including penalty points.

One hundred fifty-six (156, CLVI) is the natural number following one hundred fifty-five and preceding one hundred fifty-six. It is a composite number, and its factorization is

It is a pronic number and a Harshad number.

One hundred fifty-six is also:

• The number of sons of Magbish in the Census of the men of Israel upon return from exile (Holy Bible, Ezra 2:30).
• The year AD 156 or 156 BC.

One hundred fifty-seven (157, CLVII) is the natural number following one hundred fifty-six and preceding one hundred fifty-eight. It is the 37th prime number, the next is one hundred sixty-three.

One hundred fifty-seven is also:

• The year AD 157 or 157 BC.

One hundred fifty-eight (158, CLVIII) is the natural number following one hundred fifty-seven and preceding one hundred fifty-eight. It is a composite number, and its factorization is

It is a nontotient since there is no integer with 158 coprimes below it.

One hundred fifty-eight is also:

• The year AD 158 or 158 BC.

One hundred fifty-nine (159, CLIX) is the natural number following one hundred fifty-eight and preceding one hundred sixty. It is a composite number, and its factorization

This number is the sum of three consecutive primes (47 + 53 + 59). Given 159, the Mertens function returns 0. 159 is a Woodall number.

One hundred fifty-nine is also:

• The year AD 159 or 159 BC.