316108813 has 2 divisors, whose sum is σ = 316108814. Its totient is φ = 316108812.

The previous prime is 316108777. The next prime is 316108831. The reversal of 316108813 is 318801613.

Together with next prime (316108831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316057284 + 51529 = 17778^2 + 227^2 .

It is a cyclic number.

It is not a de Polignac number, because 316108813 - 2¹³ = 316100621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316108853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158054406 + 158054407.

It is an arithmetic number, because the mean of its divisors is an integer number (158054407).

Almost surely, 2^316108813 is an apocalyptic number.

It is an amenable number.

316108813 is a deficient number, since it is larger than the sum of its proper divisors (1).

316108813 is an equidigital number, since it uses as much as digits as its factorization.

316108813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 316108813 is about 17779.4491759447. The cubic root of 316108813 is about 681.2066328424.

The spelling of 316108813 in words is "three hundred sixteen million, one hundred eight thousand, eight hundred thirteen".