157861593 has 12 divisors (see below), whose sum is σ = 229389888. Its totient is φ = 104609880.

The previous prime is 157861553. The next prime is 157861607. The reversal of 157861593 is 395168751.

It is a happy number.

157861593 is a `hidden beast` number, since 1 + 57 + 8 + 6 + 1 + 593 = 666.

157861593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157861593 - 2²⁶ = 90752729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157861553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51013 + ... + 54018.

It is an arithmetic number, because the mean of its divisors is an integer number (19115824).

Almost surely, 2^157861593 is an apocalyptic number.

It is an amenable number.

157861593 is a deficient number, since it is larger than the sum of its proper divisors (71528295).

157861593 is a wasteful number, since it uses less digits than its factorization.

157861593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105204 (or 105201 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 157861593 is about 12564.2983488932. The cubic root of 157861593 is about 540.4541138899.

The spelling of 157861593 in words is "one hundred fifty-seven million, eight hundred sixty-one thousand, five hundred ninety-three".