1315539013 has 2 divisors, whose sum is σ = 1315539014. Its totient is φ = 1315539012.

The previous prime is 1315538923. The next prime is 1315539041. The reversal of 1315539013 is 3109355131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1106360644 + 209178369 = 33262^2 + 14463^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315539013 - 2²⁵ = 1281984581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315539083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657769506 + 657769507.

It is an arithmetic number, because the mean of its divisors is an integer number (657769507).

Almost surely, 2^1315539013 is an apocalyptic number.

It is an amenable number.

1315539013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315539013 is an equidigital number, since it uses as much as digits as its factorization.

1315539013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6075, while the sum is 31.

The square root of 1315539013 is about 36270.3599789139. The cubic root of 1315539013 is about 1095.7241758555.

The spelling of 1315539013 in words is "one billion, three hundred fifteen million, five hundred thirty-nine thousand, thirteen".