157875231 has 16 divisors (see below), whose sum is σ = 217831680. Its totient is φ = 101640000.

The previous prime is 157875187. The next prime is 157875233. The reversal of 157875231 is 132578751.

It is not a de Polignac number, because 157875231 - 2⁶ = 157875167 is a prime.

It is a super-2 number, since 2×157875231² = 49849177126606722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157875231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157875233) 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, 4606 + ... + 18356.

It is an arithmetic number, because the mean of its divisors is an integer number (13614480).

Almost surely, 2^157875231 is an apocalyptic number.

157875231 is a deficient number, since it is larger than the sum of its proper divisors (59956449).

157875231 is a wasteful number, since it uses less digits than its factorization.

157875231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13886.

The product of its digits is 58800, while the sum is 39.

The square root of 157875231 is about 12564.8410654493. The cubic root of 157875231 is about 540.4696771033.

The spelling of 157875231 in words is "one hundred fifty-seven million, eight hundred seventy-five thousand, two hundred thirty-one".