157036521 has 16 divisors (see below), whose sum is σ = 211636800. Its totient is φ = 103570368.

The previous prime is 157036507. The next prime is 157036553. The reversal of 157036521 is 125630751.

It is not a de Polignac number, because 157036521 - 2⁵ = 157036489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157031521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122335 + ... + 123611.

It is an arithmetic number, because the mean of its divisors is an integer number (13227300).

Almost surely, 2^157036521 is an apocalyptic number.

It is an amenable number.

157036521 is a deficient number, since it is larger than the sum of its proper divisors (54600279).

157036521 is a wasteful number, since it uses less digits than its factorization.

157036521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 157036521 is about 12531.4213479557. The cubic root of 157036521 is about 539.5108980103.

The spelling of 157036521 in words is "one hundred fifty-seven million, thirty-six thousand, five hundred twenty-one".