1315984013 has 2 divisors, whose sum is σ = 1315984014. Its totient is φ = 1315984012.

The previous prime is 1315983983. The next prime is 1315984027. The reversal of 1315984013 is 3104895131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1307328649 + 8655364 = 36157^2 + 2942^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315984013 - 2¹⁰ = 1315982989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315984063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657992006 + 657992007.

It is an arithmetic number, because the mean of its divisors is an integer number (657992007).

Almost surely, 2^1315984013 is an apocalyptic number.

It is an amenable number.

1315984013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315984013 is an equidigital number, since it uses as much as digits as its factorization.

1315984013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1315984013 is about 36276.4939458046. The cubic root of 1315984013 is about 1095.8477100836.

The spelling of 1315984013 in words is "one billion, three hundred fifteen million, nine hundred eighty-four thousand, thirteen".