133159332 has 12 divisors (see below), whose sum is σ = 310705136. Its totient is φ = 44386440.

The previous prime is 133159331. The next prime is 133159343. The reversal of 133159332 is 233951331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 133159332.

It is not an unprimeable number, because it can be changed into a prime (133159331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5548294 + ... + 5548317.

Almost surely, 2^133159332 is an apocalyptic number.

133159332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133159332 is an abundant number, since it is smaller than the sum of its proper divisors (177545804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133159332 is a wasteful number, since it uses less digits than its factorization.

133159332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11096618 (or 11096616 counting only the distinct ones).

The product of its digits is 7290, while the sum is 30.

The square root of 133159332 is about 11539.4684452968. The cubic root of 133159332 is about 510.6506267492.

The spelling of 133159332 in words is "one hundred thirty-three million, one hundred fifty-nine thousand, three hundred thirty-two".