12655612 has 24 divisors (see below), whose sum is σ = 23288832. Its totient is φ = 6006000.

The previous prime is 12655607. The next prime is 12655619. The reversal of 12655612 is 21655621.

12655612 is nontrivially palindromic in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12655619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13437 + ... + 14347.

It is an arithmetic number, because the mean of its divisors is an integer number (970368).

Almost surely, 2^12655612 is an apocalyptic number.

It is an amenable number.

12655612 is a deficient number, since it is larger than the sum of its proper divisors (10633220).

12655612 is a wasteful number, since it uses less digits than its factorization.

12655612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089 (or 1087 counting only the distinct ones).

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

The square root of 12655612 is about 3557.4726984195. The cubic root of 12655612 is about 233.0385220006.

Subtracting 12655612 from its reverse (21655621), we obtain a palindrome (9000009).

The spelling of 12655612 in words is "twelve million, six hundred fifty-five thousand, six hundred twelve".