157918988 has 12 divisors (see below), whose sum is σ = 276446352. Its totient is φ = 78934320.

The previous prime is 157918979. The next prime is 157919009. The reversal of 157918988 is 889819751.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20378 + ... + 27038.

It is an arithmetic number, because the mean of its divisors is an integer number (23037196).

Almost surely, 2^157918988 is an apocalyptic number.

It is an amenable number.

157918988 is a deficient number, since it is larger than the sum of its proper divisors (118527364).

157918988 is a wasteful number, since it uses less digits than its factorization.

157918988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12592 (or 12590 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 56.

The square root of 157918988 is about 12566.5821924659. The cubic root of 157918988 is about 540.5196050262.

The spelling of 157918988 in words is "one hundred fifty-seven million, nine hundred eighteen thousand, nine hundred eighty-eight".