12634513 has 4 divisors (see below), whose sum is σ = 12655168. Its totient is φ = 12613860.

The previous prime is 12634481. The next prime is 12634537. The reversal of 12634513 is 31543621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12634513 - 2⁵ = 12634481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12634313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9381 + ... + 10642.

It is an arithmetic number, because the mean of its divisors is an integer number (3163792).

Almost surely, 2^12634513 is an apocalyptic number.

It is an amenable number.

12634513 is a deficient number, since it is larger than the sum of its proper divisors (20655).

12634513 is an equidigital number, since it uses as much as digits as its factorization.

12634513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20654.

The product of its digits is 2160, while the sum is 25.

The square root of 12634513 is about 3554.5060134989. The cubic root of 12634513 is about 232.9089453688.

It can be divided in two parts, 1263 and 4513, that added together give a square (5776 = 76²).

The spelling of 12634513 in words is "twelve million, six hundred thirty-four thousand, five hundred thirteen".