513031139 has 2 divisors, whose sum is σ = 513031140. Its totient is φ = 513031138.

The previous prime is 513031111. The next prime is 513031153. The reversal of 513031139 is 931130315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513031139 - 2⁸ = 513030883 is a prime.

It is not a weakly prime, because it can be changed into another prime (513031109) 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, 256515569 + 256515570.

It is an arithmetic number, because the mean of its divisors is an integer number (256515570).

Almost surely, 2^513031139 is an apocalyptic number.

513031139 is a deficient number, since it is larger than the sum of its proper divisors (1).

513031139 is an equidigital number, since it uses as much as digits as its factorization.

513031139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215, while the sum is 26.

The square root of 513031139 is about 22650.1907055989. The cubic root of 513031139 is about 800.5366914349.

The spelling of 513031139 in words is "five hundred thirteen million, thirty-one thousand, one hundred thirty-nine".