157088172 has 24 divisors (see below), whose sum is σ = 367048192. Its totient is φ = 52290000.

The previous prime is 157088171. The next prime is 157088203. The reversal of 157088172 is 271880751.

It is a self number, because there is not a number n which added to its sum of digits gives 157088172.

It is not an unprimeable number, because it can be changed into a prime (157088171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297 + ... + 17727.

Almost surely, 2^157088172 is an apocalyptic number.

157088172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157088172 is an abundant number, since it is smaller than the sum of its proper divisors (209960020).

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

157088172 is a wasteful number, since it uses less digits than its factorization.

157088172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18189 (or 18187 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 39.

The square root of 157088172 is about 12533.4820381249. The cubic root of 157088172 is about 539.5700418379.

The spelling of 157088172 in words is "one hundred fifty-seven million, eighty-eight thousand, one hundred seventy-two".