2315317 has 2 divisors, whose sum is σ = 2315318. Its totient is φ = 2315316.

The previous prime is 2315263. The next prime is 2315329. The reversal of 2315317 is 7135132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1313316 + 1002001 = 1146^2 + 1001^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315317 - 2¹⁵ = 2282549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2315347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1157658 + 1157659.

It is an arithmetic number, because the mean of its divisors is an integer number (1157659).

2^2315317 is an apocalyptic number.

It is an amenable number.

2315317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2315317 is an equidigital number, since it uses as much as digits as its factorization.

2315317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 630, while the sum is 22.

The square root of 2315317 is about 1521.6165745680. The cubic root of 2315317 is about 132.2929863372.

The spelling of 2315317 in words is "two million, three hundred fifteen thousand, three hundred seventeen".