157589131 has 4 divisors (see below), whose sum is σ = 180101872. Its totient is φ = 135076392.

The previous prime is 157589129. The next prime is 157589137. The reversal of 157589131 is 131985751.

157589131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131985751 = 2837 ⋅46523.

It is a cyclic number.

It is not a de Polignac number, because 157589131 - 2¹ = 157589129 is a prime.

It is a super-2 number, since 2×157589131² = 49668668418670322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157589137) 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, 11256360 + ... + 11256373.

It is an arithmetic number, because the mean of its divisors is an integer number (45025468).

Almost surely, 2^157589131 is an apocalyptic number.

157589131 is a deficient number, since it is larger than the sum of its proper divisors (22512741).

157589131 is an equidigital number, since it uses as much as digits as its factorization.

157589131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22512740.

The product of its digits is 37800, while the sum is 40.

The square root of 157589131 is about 12553.4509597959. The cubic root of 157589131 is about 540.1430016791.

The spelling of 157589131 in words is "one hundred fifty-seven million, five hundred eighty-nine thousand, one hundred thirty-one".