157178872 has 64 divisors (see below), whose sum is σ = 329313600. Its totient is φ = 69949440.

The previous prime is 157178863. The next prime is 157178893. The reversal of 157178872 is 278871751.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340722 + ... + 341182.

It is an arithmetic number, because the mean of its divisors is an integer number (5145525).

Almost surely, 2^157178872 is an apocalyptic number.

It is an amenable number.

157178872 is an abundant number, since it is smaller than the sum of its proper divisors (172134728).

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

157178872 is a wasteful number, since it uses less digits than its factorization.

157178872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 612 counting only the distinct ones).

The product of its digits is 219520, while the sum is 46.

The square root of 157178872 is about 12537.0998241220. The cubic root of 157178872 is about 539.6738680020.

The spelling of 157178872 in words is "one hundred fifty-seven million, one hundred seventy-eight thousand, eight hundred seventy-two".