12631308 has 12 divisors (see below), whose sum is σ = 29473080. Its totient is φ = 4210432.

The previous prime is 12631303. The next prime is 12631337. The reversal of 12631308 is 80313621.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12631303) 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, 526293 + ... + 526316.

It is an arithmetic number, because the mean of its divisors is an integer number (2456090).

Almost surely, 2^12631308 is an apocalyptic number.

It is an amenable number.

12631308 is an abundant number, since it is smaller than the sum of its proper divisors (16841772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12631308 is a wasteful number, since it uses less digits than its factorization.

12631308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052616 (or 1052614 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12631308 is about 3554.0551486999. The cubic root of 12631308 is about 232.8892496803.

Adding to 12631308 its reverse (80313621), we get a palindrome (92944929).

The spelling of 12631308 in words is "twelve million, six hundred thirty-one thousand, three hundred eight".