12631894 has 16 divisors (see below), whose sum is σ = 20964096. Its totient is φ = 5660200.

The previous prime is 12631891. The next prime is 12631897. The reversal of 12631894 is 49813621.

It is an interprime number because it is at equal distance from previous prime (12631891) and next prime (12631897).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12631891) 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, 2482 + ... + 5605.

It is an arithmetic number, because the mean of its divisors is an integer number (1310256).

Almost surely, 2^12631894 is an apocalyptic number.

12631894 is a deficient number, since it is larger than the sum of its proper divisors (8332202).

12631894 is a wasteful number, since it uses less digits than its factorization.

12631894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8171.

The product of its digits is 10368, while the sum is 34.

The square root of 12631894 is about 3554.1375887830. The cubic root of 12631894 is about 232.8928510753.

The spelling of 12631894 in words is "twelve million, six hundred thirty-one thousand, eight hundred ninety-four".