12615648 has 24 divisors (see below), whose sum is σ = 33116328. Its totient is φ = 4205184.

The previous prime is 12615623. The next prime is 12615653. The reversal of 12615648 is 84651621.

12615648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×12615648³ (a number of 22 digits) contains 333 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65611 + ... + 65802.

It is an arithmetic number, because the mean of its divisors is an integer number (1379847).

Almost surely, 2^12615648 is an apocalyptic number.

It is an amenable number.

12615648 is an abundant number, since it is smaller than the sum of its proper divisors (20500680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12615648 is a wasteful number, since it uses less digits than its factorization.

12615648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131426 (or 131418 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 12615648 is about 3551.8513482408. The cubic root of 12615648 is about 232.7929663325.

The spelling of 12615648 in words is "twelve million, six hundred fifteen thousand, six hundred forty-eight".