157865158 has 16 divisors (see below), whose sum is σ = 258531840. Its totient is φ = 71699400.

The previous prime is 157865153. The next prime is 157865159. The reversal of 157865158 is 851568751.

It is a super-2 number, since 2×157865158² = 49842816220729928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157865153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38323 + ... + 42241.

It is an arithmetic number, because the mean of its divisors is an integer number (16158240).

Almost surely, 2^157865158 is an apocalyptic number.

157865158 is a deficient number, since it is larger than the sum of its proper divisors (100666682).

157865158 is a wasteful number, since it uses less digits than its factorization.

157865158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5763.

The product of its digits is 336000, while the sum is 46.

The square root of 157865158 is about 12564.4402183305. The cubic root of 157865158 is about 540.4581822310.

The spelling of 157865158 in words is "one hundred fifty-seven million, eight hundred sixty-five thousand, one hundred fifty-eight".