157013977 has 16 divisors (see below), whose sum is σ = 167360512. Its totient is φ = 147044160.

The previous prime is 157013971. The next prime is 157013993. The reversal of 157013977 is 779310751.

It is a de Polignac number, because none of the positive numbers 2^k-157013977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157013971) 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, 420763 + ... + 421135.

It is an arithmetic number, because the mean of its divisors is an integer number (10460032).

Almost surely, 2^157013977 is an apocalyptic number.

It is an amenable number.

157013977 is a deficient number, since it is larger than the sum of its proper divisors (10346535).

157013977 is a wasteful number, since it uses less digits than its factorization.

157013977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808.

The product of its (nonzero) digits is 46305, while the sum is 40.

The square root of 157013977 is about 12530.5218167481. The cubic root of 157013977 is about 539.4850795665.

The spelling of 157013977 in words is "one hundred fifty-seven million, thirteen thousand, nine hundred seventy-seven".