318566113 has 2 divisors, whose sum is σ = 318566114. Its totient is φ = 318566112.

The previous prime is 318566107. The next prime is 318566117. The reversal of 318566113 is 311665813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307195729 + 11370384 = 17527^2 + 3372^2 .

It is a cyclic number.

It is not a de Polignac number, because 318566113 - 2⁵ = 318566081 is a prime.

It is not a weakly prime, because it can be changed into another prime (318566117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159283056 + 159283057.

It is an arithmetic number, because the mean of its divisors is an integer number (159283057).

Almost surely, 2^318566113 is an apocalyptic number.

It is an amenable number.

318566113 is a deficient number, since it is larger than the sum of its proper divisors (1).

318566113 is an equidigital number, since it uses as much as digits as its factorization.

318566113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 318566113 is about 17848.4204623266. The cubic root of 318566113 is about 682.9672188041.

The spelling of 318566113 in words is "three hundred eighteen million, five hundred sixty-six thousand, one hundred thirteen".