12586913 has 2 divisors, whose sum is σ = 12586914. Its totient is φ = 12586912.

The previous prime is 12586901. The next prime is 12586963. The reversal of 12586913 is 31968521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8392609 + 4194304 = 2897^2 + 2048^2 .

It is a cyclic number.

It is not a de Polignac number, because 12586913 - 2⁸ = 12586657 is a prime.

It is not a weakly prime, because it can be changed into another prime (12586963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6293456 + 6293457.

It is an arithmetic number, because the mean of its divisors is an integer number (6293457).

Almost surely, 2^12586913 is an apocalyptic number.

It is an amenable number.

12586913 is a deficient number, since it is larger than the sum of its proper divisors (1).

12586913 is an equidigital number, since it uses as much as digits as its factorization.

12586913 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 12586913 is about 3547.8039686544. The cubic root of 12586913 is about 232.6160857070.

The spelling of 12586913 in words is "twelve million, five hundred eighty-six thousand, nine hundred thirteen".