12925139 has 2 divisors, whose sum is σ = 12925140. Its totient is φ = 12925138.

The previous prime is 12925093. The next prime is 12925169. The reversal of 12925139 is 93152921.

12925139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12925139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12925169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6462569 + 6462570.

It is an arithmetic number, because the mean of its divisors is an integer number (6462570).

Almost surely, 2^12925139 is an apocalyptic number.

12925139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12925139 is an equidigital number, since it uses as much as digits as its factorization.

12925139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 32.

The square root of 12925139 is about 3595.1549340745. The cubic root of 12925139 is about 234.6812579257.

The spelling of 12925139 in words is "twelve million, nine hundred twenty-five thousand, one hundred thirty-nine".