12605631 has 8 divisors (see below), whose sum is σ = 16919424. Its totient is φ = 8347800.

The previous prime is 12605629. The next prime is 12605647. The reversal of 12605631 is 13650621.

12605631 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 not a de Polignac number, because 12605631 - 2¹ = 12605629 is a prime.

It is a super-2 number, since 2×12605631² = 317803865816322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12605611) 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, 13461 + ... + 14366.

It is an arithmetic number, because the mean of its divisors is an integer number (2114928).

Almost surely, 2^12605631 is an apocalyptic number.

12605631 is a deficient number, since it is larger than the sum of its proper divisors (4313793).

12605631 is a wasteful number, since it uses less digits than its factorization.

12605631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27981.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 12605631 is about 3550.4409585290. The cubic root of 12605631 is about 232.7313364001.

The spelling of 12605631 in words is "twelve million, six hundred five thousand, six hundred thirty-one".