12615256 has 8 divisors (see below), whose sum is σ = 23653620. Its totient is φ = 6307624.

The previous prime is 12615199. The next prime is 12615257. The reversal of 12615256 is 65251621.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12615257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 788446 + ... + 788461.

Almost surely, 2^12615256 is an apocalyptic number.

It is an amenable number.

12615256 is a deficient number, since it is larger than the sum of its proper divisors (11038364).

12615256 is a wasteful number, since it uses less digits than its factorization.

12615256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576913 (or 1576909 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 12615256 is about 3551.7961653226. The cubic root of 12615256 is about 232.7905551527.

Adding to 12615256 its reverse (65251621), we get a palindrome (77866877).

The spelling of 12615256 in words is "twelve million, six hundred fifteen thousand, two hundred fifty-six".