12715655 has 16 divisors (see below), whose sum is σ = 16195680. Its totient is φ = 9556992.

The previous prime is 12715649. The next prime is 12715667. The reversal of 12715655 is 55651721.

It is a cyclic number.

It is not a de Polignac number, because 12715655 - 2¹⁰ = 12714631 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12527 + ... + 13503.

It is an arithmetic number, because the mean of its divisors is an integer number (1012230).

Almost surely, 2^12715655 is an apocalyptic number.

12715655 is a deficient number, since it is larger than the sum of its proper divisors (3480025).

12715655 is a wasteful number, since it uses less digits than its factorization.

12715655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138.

The product of its digits is 10500, while the sum is 32.

The square root of 12715655 is about 3565.9017092455. The cubic root of 12715655 is about 233.4064816013.

The spelling of 12715655 in words is "twelve million, seven hundred fifteen thousand, six hundred fifty-five".