12308913 has 12 divisors (see below), whose sum is σ = 17821440. Its totient is φ = 8186616.

The previous prime is 12308909. The next prime is 12308921. The reversal of 12308913 is 31980321.

12308913 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12308913 - 2² = 12308909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12308113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3168 + ... + 5886.

It is an arithmetic number, because the mean of its divisors is an integer number (1485120).

Almost surely, 2^12308913 is an apocalyptic number.

It is an amenable number.

12308913 is a deficient number, since it is larger than the sum of its proper divisors (5512527).

12308913 is a wasteful number, since it uses less digits than its factorization.

12308913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228 (or 3225 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12308913 is about 3508.4060483359. The cubic root of 12308913 is about 230.8907674932.

The spelling of 12308913 in words is "twelve million, three hundred eight thousand, nine hundred thirteen".