512113139 has 2 divisors, whose sum is σ = 512113140. Its totient is φ = 512113138.

The previous prime is 512113109. The next prime is 512113157. The reversal of 512113139 is 931311215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 512113139 - 2⁸ = 512112883 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (512113109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256056569 + 256056570.

It is an arithmetic number, because the mean of its divisors is an integer number (256056570).

Almost surely, 2^512113139 is an apocalyptic number.

512113139 is a deficient number, since it is larger than the sum of its proper divisors (1).

512113139 is an equidigital number, since it uses as much as digits as its factorization.

512113139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 26.

The square root of 512113139 is about 22629.9169021895. The cubic root of 512113139 is about 800.0589222226.

The spelling of 512113139 in words is "five hundred twelve million, one hundred thirteen thousand, one hundred thirty-nine".