157163557 has 6 divisors (see below), whose sum is σ = 162770738. Its totient is φ = 151743312.

The previous prime is 157163527. The next prime is 157163569. The reversal of 157163557 is 755361751.

It can be written as a sum of positive squares in 3 ways, for example, as 35414401 + 121749156 = 5951^2 + 11034^2 .

It is a de Polignac number, because none of the positive numbers 2^k-157163557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157163507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92598 + ... + 94279.

Almost surely, 2^157163557 is an apocalyptic number.

It is an amenable number.

157163557 is a deficient number, since it is larger than the sum of its proper divisors (5607181).

157163557 is an equidigital number, since it uses as much as digits as its factorization.

157163557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186935 (or 186906 counting only the distinct ones).

The product of its digits is 110250, while the sum is 40.

The square root of 157163557 is about 12536.4890220508. The cubic root of 157163557 is about 539.6563394083.

The spelling of 157163557 in words is "one hundred fifty-seven million, one hundred sixty-three thousand, five hundred fifty-seven".