13012691 has 2 divisors, whose sum is σ = 13012692. Its totient is φ = 13012690.

The previous prime is 13012679. The next prime is 13012693. The reversal of 13012691 is 19621031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13012691 is a prime.

It is a super-2 number, since 2×13012691² = 338660254122962, which contains 22 as substring.

Together with 13012693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13012693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6506345 + 6506346.

It is an arithmetic number, because the mean of its divisors is an integer number (6506346).

Almost surely, 2^13012691 is an apocalyptic number.

13012691 is a deficient number, since it is larger than the sum of its proper divisors (1).

13012691 is an equidigital number, since it uses as much as digits as its factorization.

13012691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 13012691 is about 3607.3107711978. The cubic root of 13012691 is about 235.2099587292.

It can be divided in two parts, 130 and 12691, that added together give a palindrome (12821).

The spelling of 13012691 in words is "thirteen million, twelve thousand, six hundred ninety-one".