12915593 has 2 divisors, whose sum is σ = 12915594. Its totient is φ = 12915592.

The previous prime is 12915587. The next prime is 12915653. The reversal of 12915593 is 39551921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9259849 + 3655744 = 3043^2 + 1912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12915593 is a prime.

It is not a weakly prime, because it can be changed into another prime (12915583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6457796 + 6457797.

It is an arithmetic number, because the mean of its divisors is an integer number (6457797).

Almost surely, 2^12915593 is an apocalyptic number.

It is an amenable number.

12915593 is a deficient number, since it is larger than the sum of its proper divisors (1).

12915593 is an equidigital number, since it uses as much as digits as its factorization.

12915593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12150, while the sum is 35.

The square root of 12915593 is about 3593.8270687388. The cubic root of 12915593 is about 234.6234682432.

The spelling of 12915593 in words is "twelve million, nine hundred fifteen thousand, five hundred ninety-three".