157994936 has 32 divisors (see below), whose sum is σ = 326818800. Its totient is φ = 71005440.

The previous prime is 157994927. The next prime is 157994939. The reversal of 157994936 is 639499751.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157994939) 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, 2255 + ... + 17918.

Almost surely, 2^157994936 is an apocalyptic number.

It is an amenable number.

157994936 is an abundant number, since it is smaller than the sum of its proper divisors (168823864).

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

157994936 is a wasteful number, since it uses less digits than its factorization.

157994936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20279 (or 20275 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 53.

The square root of 157994936 is about 12569.6036532581. The cubic root of 157994936 is about 540.6062418609.

The spelling of 157994936 in words is "one hundred fifty-seven million, nine hundred ninety-four thousand, nine hundred thirty-six".