513231079 has 2 divisors, whose sum is σ = 513231080. Its totient is φ = 513231078.

The previous prime is 513231001. The next prime is 513231083. The reversal of 513231079 is 970132315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513231079 - 2⁹ = 513230567 is a prime.

It is a super-2 number, since 2×513231079² = 526812280903008482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 513231079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513231179) 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, 256615539 + 256615540.

It is an arithmetic number, because the mean of its divisors is an integer number (256615540).

Almost surely, 2^513231079 is an apocalyptic number.

513231079 is a deficient number, since it is larger than the sum of its proper divisors (1).

513231079 is an equidigital number, since it uses as much as digits as its factorization.

513231079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 513231079 is about 22654.6039250303. The cubic root of 513231079 is about 800.6406737636.

The spelling of 513231079 in words is "five hundred thirteen million, two hundred thirty-one thousand, seventy-nine".