317456131 has 2 divisors, whose sum is σ = 317456132. Its totient is φ = 317456130.

The previous prime is 317456129. The next prime is 317456137. The reversal of 317456131 is 131654713.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 317456131 - 2¹ = 317456129 is a prime.

It is a super-2 number, since 2×317456131² = 201556790218978322, which contains 22 as substring.

Together with 317456129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 317456093 and 317456102.

It is not a weakly prime, because it can be changed into another prime (317456137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158728065 + 158728066.

It is an arithmetic number, because the mean of its divisors is an integer number (158728066).

Almost surely, 2^317456131 is an apocalyptic number.

317456131 is a deficient number, since it is larger than the sum of its proper divisors (1).

317456131 is an equidigital number, since it uses as much as digits as its factorization.

317456131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 31.

The square root of 317456131 is about 17817.2986448564. The cubic root of 317456131 is about 682.1730733512.

The spelling of 317456131 in words is "three hundred seventeen million, four hundred fifty-six thousand, one hundred thirty-one".