318417131 has 2 divisors, whose sum is σ = 318417132. Its totient is φ = 318417130.

The previous prime is 318417109. The next prime is 318417161. The reversal of 318417131 is 131714813.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 318417131 - 2¹⁸ = 318154987 is a prime.

It is a super-2 number, since 2×318417131² = 202778938628542322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 318417094 and 318417103.

It is not a weakly prime, because it can be changed into another prime (318417161) 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, 159208565 + 159208566.

It is an arithmetic number, because the mean of its divisors is an integer number (159208566).

Almost surely, 2^318417131 is an apocalyptic number.

318417131 is a deficient number, since it is larger than the sum of its proper divisors (1).

318417131 is an equidigital number, since it uses as much as digits as its factorization.

318417131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 29.

The square root of 318417131 is about 17844.2464396791. The cubic root of 318417131 is about 682.8607357396.

The spelling of 318417131 in words is "three hundred eighteen million, four hundred seventeen thousand, one hundred thirty-one".