13112537 has 2 divisors, whose sum is σ = 13112538. Its totient is φ = 13112536.

The previous prime is 13112531. The next prime is 13112563. The reversal of 13112537 is 73521131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13097161 + 15376 = 3619^2 + 124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13112537 is a prime.

It is not a weakly prime, because it can be changed into another prime (13112531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556268 + 6556269.

It is an arithmetic number, because the mean of its divisors is an integer number (6556269).

Almost surely, 2^13112537 is an apocalyptic number.

It is an amenable number.

13112537 is a deficient number, since it is larger than the sum of its proper divisors (1).

13112537 is an equidigital number, since it uses as much as digits as its factorization.

13112537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 630, while the sum is 23.

The square root of 13112537 is about 3621.1237206149. The cubic root of 13112537 is about 235.8100129965.

Adding to 13112537 its reverse (73521131), we get a palindrome (86633668).

The spelling of 13112537 in words is "thirteen million, one hundred twelve thousand, five hundred thirty-seven".