316732531 has 2 divisors, whose sum is σ = 316732532. Its totient is φ = 316732530.

The previous prime is 316732529. The next prime is 316732541. The reversal of 316732531 is 135237613.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 316732531 - 2¹ = 316732529 is a prime.

It is a super-2 number, since 2×316732531² = 200638992387331922, which contains 22 as substring.

Together with 316732529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 316732493 and 316732502.

It is not a weakly prime, because it can be changed into another prime (316732541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158366265 + 158366266.

It is an arithmetic number, because the mean of its divisors is an integer number (158366266).

Almost surely, 2^316732531 is an apocalyptic number.

316732531 is a deficient number, since it is larger than the sum of its proper divisors (1).

316732531 is an equidigital number, since it uses as much as digits as its factorization.

316732531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 31.

The square root of 316732531 is about 17796.9809518356. The cubic root of 316732531 is about 681.6543707535.

The spelling of 316732531 in words is "three hundred sixteen million, seven hundred thirty-two thousand, five hundred thirty-one".