12935139 has 16 divisors (see below), whose sum is σ = 19895040. Its totient is φ = 7322400.

The previous prime is 12935099. The next prime is 12935159. The reversal of 12935139 is 93153921.

It is not a de Polignac number, because 12935139 - 2⁹ = 12934627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12935159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537 + ... + 5114.

It is an arithmetic number, because the mean of its divisors is an integer number (1243440).

Almost surely, 2^12935139 is an apocalyptic number.

12935139 is a deficient number, since it is larger than the sum of its proper divisors (6959901).

12935139 is a wasteful number, since it uses less digits than its factorization.

12935139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5770.

The product of its digits is 7290, while the sum is 33.

The square root of 12935139 is about 3596.5454258218. The cubic root of 12935139 is about 234.7417655305.

The spelling of 12935139 in words is "twelve million, nine hundred thirty-five thousand, one hundred thirty-nine".