12513689 has 2 divisors, whose sum is σ = 12513690. Its totient is φ = 12513688.

The previous prime is 12513653. The next prime is 12513701. The reversal of 12513689 is 98631521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12369289 + 144400 = 3517^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 12513689 - 2⁸ = 12513433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12513619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256844 + 6256845.

It is an arithmetic number, because the mean of its divisors is an integer number (6256845).

Almost surely, 2^12513689 is an apocalyptic number.

It is an amenable number.

12513689 is a deficient number, since it is larger than the sum of its proper divisors (1).

12513689 is an equidigital number, since it uses as much as digits as its factorization.

12513689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 12513689 is about 3537.4692931529. The cubic root of 12513689 is about 232.1641290533.

The spelling of 12513689 in words is "twelve million, five hundred thirteen thousand, six hundred eighty-nine".