1312364513 has 2 divisors, whose sum is σ = 1312364514. Its totient is φ = 1312364512.

The previous prime is 1312364491. The next prime is 1312364539. The reversal of 1312364513 is 3154632131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1230045184 + 82319329 = 35072^2 + 9073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312364513 is a prime.

It is a super-2 number, since 2×1312364513² = 3444601229963454338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1312364563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656182256 + 656182257.

It is an arithmetic number, because the mean of its divisors is an integer number (656182257).

Almost surely, 2^1312364513 is an apocalyptic number.

It is an amenable number.

1312364513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312364513 is an equidigital number, since it uses as much as digits as its factorization.

1312364513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The square root of 1312364513 is about 36226.5719189658. The cubic root of 1312364513 is about 1094.8421095226.

Adding to 1312364513 its reverse (3154632131), we get a palindrome (4466996644).

The spelling of 1312364513 in words is "one billion, three hundred twelve million, three hundred sixty-four thousand, five hundred thirteen".