316087913 has 2 divisors, whose sum is σ = 316087914. Its totient is φ = 316087912.

The previous prime is 316087867. The next prime is 316087921. The reversal of 316087913 is 319780613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251317609 + 64770304 = 15853^2 + 8048^2 .

It is a cyclic number.

It is not a de Polignac number, because 316087913 - 2²⁰ = 315039337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (316087963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158043956 + 158043957.

It is an arithmetic number, because the mean of its divisors is an integer number (158043957).

Almost surely, 2^316087913 is an apocalyptic number.

It is an amenable number.

316087913 is a deficient number, since it is larger than the sum of its proper divisors (1).

316087913 is an equidigital number, since it uses as much as digits as its factorization.

316087913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 316087913 is about 17778.8614089879. The cubic root of 316087913 is about 681.1916195181.

The spelling of 316087913 in words is "three hundred sixteen million, eighty-seven thousand, nine hundred thirteen".