157165879 has 4 divisors (see below), whose sum is σ = 169255576. Its totient is φ = 145076184.

The previous prime is 157165849. The next prime is 157165889. The reversal of 157165879 is 978561751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978561751 = 16057 ⋅60943.

It is a cyclic number.

It is not a de Polignac number, because 157165879 - 2⁵ = 157165847 is a prime.

It is a super-2 number, since 2×157165879² = 49402227043685282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157165849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6044829 + ... + 6044854.

It is an arithmetic number, because the mean of its divisors is an integer number (42313894).

Almost surely, 2^157165879 is an apocalyptic number.

157165879 is a deficient number, since it is larger than the sum of its proper divisors (12089697).

157165879 is a wasteful number, since it uses less digits than its factorization.

157165879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12089696.

The product of its digits is 529200, while the sum is 49.

The square root of 157165879 is about 12536.5816313699. The cubic root of 157165879 is about 539.6589970979.

The spelling of 157165879 in words is "one hundred fifty-seven million, one hundred sixty-five thousand, eight hundred seventy-nine".