133 (number)

133 is the number equal to 100 + 30 + 3.

Cardinal	One hundred [and] thirty-three
Ordinal	133rd
Factorization
Divisors	7, 19
Roman numeral	CXXXIII
Binary	10000101
Hexadecimal	85

It is the smallest n whose divisors (excluding n itself) added up divide φ(n). It is an octagonal number and a Harshad number. It is also a happy number.

Uses

The year 133 or 133 BC