518741513 has 2 divisors, whose sum is σ = 518741514. Its totient is φ = 518741512.

The previous prime is 518741441. The next prime is 518741521. The reversal of 518741513 is 315147815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 514019584 + 4721929 = 22672^2 + 2173^2 .

It is a cyclic number.

It is not a de Polignac number, because 518741513 - 2⁸ = 518741257 is a prime.

It is not a weakly prime, because it can be changed into another prime (518731513) 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, 259370756 + 259370757.

It is an arithmetic number, because the mean of its divisors is an integer number (259370757).

Almost surely, 2^518741513 is an apocalyptic number.

It is an amenable number.

518741513 is a deficient number, since it is larger than the sum of its proper divisors (1).

518741513 is an equidigital number, since it uses as much as digits as its factorization.

518741513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 35.

The square root of 518741513 is about 22775.8976332438. The cubic root of 518741513 is about 803.4959057389.

The spelling of 518741513 in words is "five hundred eighteen million, seven hundred forty-one thousand, five hundred thirteen".