518013413 has 2 divisors, whose sum is σ = 518013414. Its totient is φ = 518013412.

The previous prime is 518013407. The next prime is 518013439. The reversal of 518013413 is 314310815.

It is an a-pointer prime, because the next prime (518013439) can be obtained adding 518013413 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285542404 + 232471009 = 16898^2 + 15247^2 .

It is a cyclic number.

It is not a de Polignac number, because 518013413 - 2⁸ = 518013157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (518010413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259006706 + 259006707.

It is an arithmetic number, because the mean of its divisors is an integer number (259006707).

Almost surely, 2^518013413 is an apocalyptic number.

It is an amenable number.

518013413 is a deficient number, since it is larger than the sum of its proper divisors (1).

518013413 is an equidigital number, since it uses as much as digits as its factorization.

518013413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 518013413 is about 22759.9080182676. The cubic root of 518013413 is about 803.1198036535.

The spelling of 518013413 in words is "five hundred eighteen million, thirteen thousand, four hundred thirteen".