316456531 has 2 divisors, whose sum is σ = 316456532. Its totient is φ = 316456530.

The previous prime is 316456519. The next prime is 316456549. The reversal of 316456531 is 135654613.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 316456531 - 2⁷ = 316456403 is a prime.

It is a super-2 number, since 2×316456531² = 200289472025107922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (316456501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158228265 + 158228266.

It is an arithmetic number, because the mean of its divisors is an integer number (158228266).

Almost surely, 2^316456531 is an apocalyptic number.

316456531 is a deficient number, since it is larger than the sum of its proper divisors (1).

316456531 is an equidigital number, since it uses as much as digits as its factorization.

316456531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 34.

The square root of 316456531 is about 17789.2251377063. The cubic root of 316456531 is about 681.4563158631.

It can be divided in two parts, 3164 and 56531, that added together give a palindrome (59695).

The spelling of 316456531 in words is "three hundred sixteen million, four hundred fifty-six thousand, five hundred thirty-one".