12634631 has 4 divisors (see below), whose sum is σ = 12665064. Its totient is φ = 12604200.

The previous prime is 12634607. The next prime is 12634651. The reversal of 12634631 is 13643621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13643621 = 379 ⋅35999.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12634631 is a prime.

It is a super-2 number, since 2×12634631² = 319267801012322, which contains 22 as substring.

It is a Duffinian number.

12634631 is a modest number, since divided by 4631 gives 1263 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 12634631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12634651) 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, 14585 + ... + 15426.

It is an arithmetic number, because the mean of its divisors is an integer number (3166266).

Almost surely, 2^12634631 is an apocalyptic number.

12634631 is a deficient number, since it is larger than the sum of its proper divisors (30433).

12634631 is an equidigital number, since it uses as much as digits as its factorization.

12634631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30432.

The product of its digits is 2592, while the sum is 26.

The square root of 12634631 is about 3554.5226121098. The cubic root of 12634631 is about 232.9096704507.

The spelling of 12634631 in words is "twelve million, six hundred thirty-four thousand, six hundred thirty-one".