157981180 has 48 divisors (see below), whose sum is σ = 379975680. Its totient is φ = 54047808.

The previous prime is 157981169. The next prime is 157981193. The reversal of 157981180 is 81189751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85749 + ... + 87571.

It is an arithmetic number, because the mean of its divisors is an integer number (7916160).

Almost surely, 2^157981180 is an apocalyptic number.

157981180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157981180 is an abundant number, since it is smaller than the sum of its proper divisors (221994500).

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

157981180 is a wasteful number, since it uses less digits than its factorization.

157981180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458 (or 2456 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 40.

The square root of 157981180 is about 12569.0564482780. The cubic root of 157981180 is about 540.5905519164.

The spelling of 157981180 in words is "one hundred fifty-seven million, nine hundred eighty-one thousand, one hundred eighty".