12518663 has 8 divisors (see below), whose sum is σ = 13210800. Its totient is φ = 11829888.

The previous prime is 12518659. The next prime is 12518669. The reversal of 12518663 is 36681521.

It is a happy number.

12518663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12518663 - 2² = 12518659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12518669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11903 + ... + 12911.

It is an arithmetic number, because the mean of its divisors is an integer number (1651350).

Almost surely, 2^12518663 is an apocalyptic number.

12518663 is a deficient number, since it is larger than the sum of its proper divisors (692137).

12518663 is a wasteful number, since it uses less digits than its factorization.

12518663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681.

The product of its digits is 8640, while the sum is 32.

The square root of 12518663 is about 3538.1722682764. The cubic root of 12518663 is about 232.1948855421.

The spelling of 12518663 in words is "twelve million, five hundred eighteen thousand, six hundred sixty-three".