12313537 has 2 divisors, whose sum is σ = 12313538. Its totient is φ = 12313536.

The previous prime is 12313513. The next prime is 12313549. The reversal of 12313537 is 73531321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6739216 + 5574321 = 2596^2 + 2361^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313537 - 2⁷ = 12313409 is a prime.

It is not a weakly prime, because it can be changed into another prime (12313237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156768 + 6156769.

It is an arithmetic number, because the mean of its divisors is an integer number (6156769).

Almost surely, 2^12313537 is an apocalyptic number.

It is an amenable number.

12313537 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313537 is an equidigital number, since it uses as much as digits as its factorization.

12313537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 25.

The square root of 12313537 is about 3509.0649751750. The cubic root of 12313537 is about 230.9196762264.

Adding to 12313537 its reverse (73531321), we get a palindrome (85844858).

The spelling of 12313537 in words is "twelve million, three hundred thirteen thousand, five hundred thirty-seven".