151133172 has 12 divisors (see below), whose sum is σ = 352644096. Its totient is φ = 50377720.

The previous prime is 151133159. The next prime is 151133189. The reversal of 151133172 is 271331151.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6297204 + ... + 6297227.

It is an arithmetic number, because the mean of its divisors is an integer number (29387008).

Almost surely, 2^151133172 is an apocalyptic number.

151133172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

151133172 is an abundant number, since it is smaller than the sum of its proper divisors (201510924).

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

151133172 is a wasteful number, since it uses less digits than its factorization.

151133172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12594438 (or 12594436 counting only the distinct ones).

The product of its digits is 630, while the sum is 24.

The square root of 151133172 is about 12293.6232250708. The cubic root of 151133172 is about 532.6639015842.

The spelling of 151133172 in words is "one hundred fifty-one million, one hundred thirty-three thousand, one hundred seventy-two".