316157 has 4 divisors (see below), whose sum is σ = 317340. Its totient is φ = 314976.

The previous prime is 316153. The next prime is 316177. The reversal of 316157 is 751613.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 151321 + 164836 = 389^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 316157 - 2² = 316153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316157.

It is not an unprimeable number, because it can be changed into a prime (316153) 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, 23 + ... + 795.

It is an arithmetic number, because the mean of its divisors is an integer number (79335).

2³¹⁶¹⁵⁷ is an apocalyptic number.

It is an amenable number.

316157 is a deficient number, since it is larger than the sum of its proper divisors (1183).

316157 is an equidigital number, since it uses as much as digits as its factorization.

316157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182.

The product of its digits is 630, while the sum is 23.

The square root of 316157 is about 562.2784007945. The cubic root of 316157 is about 68.1241245013.

The spelling of 316157 in words is "three hundred sixteen thousand, one hundred fifty-seven".