12912107 has 6 divisors (see below), whose sum is σ = 13981932. Its totient is φ = 11918712.

The previous prime is 12912103. The next prime is 12912139. The reversal of 12912107 is 70121921.

12912107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12912107 - 2² = 12912103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12912101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38033 + ... + 38370.

It is an arithmetic number, because the mean of its divisors is an integer number (2330322).

Almost surely, 2^12912107 is an apocalyptic number.

12912107 is a deficient number, since it is larger than the sum of its proper divisors (1069825).

12912107 is an equidigital number, since it uses as much as digits as its factorization.

12912107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76429 (or 76416 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 12912107 is about 3593.3420377136. The cubic root of 12912107 is about 234.6023575592.

The spelling of 12912107 in words is "twelve million, nine hundred twelve thousand, one hundred seven".