157818372 has 12 divisors (see below), whose sum is σ = 368242896. Its totient is φ = 52606120.

The previous prime is 157818359. The next prime is 157818413. The reversal of 157818372 is 273818751.

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

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, 6575754 + ... + 6575777.

It is an arithmetic number, because the mean of its divisors is an integer number (30686908).

Almost surely, 2^157818372 is an apocalyptic number.

157818372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157818372 is an abundant number, since it is smaller than the sum of its proper divisors (210424524).

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

157818372 is a wasteful number, since it uses less digits than its factorization.

157818372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13151538 (or 13151536 counting only the distinct ones).

The product of its digits is 94080, while the sum is 42.

The square root of 157818372 is about 12562.5782385623. The cubic root of 157818372 is about 540.4047856588.

The spelling of 157818372 in words is "one hundred fifty-seven million, eight hundred eighteen thousand, three hundred seventy-two".