157643604 has 24 divisors (see below), whose sum is σ = 408705920. Its totient is φ = 52547832.

The previous prime is 157643597. The next prime is 157643611. The reversal of 157643604 is 406346751.

It is a happy number.

157643604 is a `hidden beast` number, since 1 + 5 + 7 + 6 + 43 + 604 = 666.

157643604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (157643597) and next prime (157643611).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729724 + ... + 729939.

Almost surely, 2^157643604 is an apocalyptic number.

It is an amenable number.

157643604 is an abundant number, since it is smaller than the sum of its proper divisors (251062316).

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

157643604 is a wasteful number, since it uses less digits than its factorization.

157643604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459676 (or 1459668 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 157643604 is about 12555.6204147784. The cubic root of 157643604 is about 540.2052306328.

The spelling of 157643604 in words is "one hundred fifty-seven million, six hundred forty-three thousand, six hundred four".