1499368313 has 2 divisors, whose sum is σ = 1499368314. Its totient is φ = 1499368312.

The previous prime is 1499368309. The next prime is 1499368391. The reversal of 1499368313 is 3138639941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 978250729 + 521117584 = 31277^2 + 22828^2 .

It is a cyclic number.

It is not a de Polignac number, because 1499368313 - 2² = 1499368309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1499368393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749684156 + 749684157.

It is an arithmetic number, because the mean of its divisors is an integer number (749684157).

Almost surely, 2^1499368313 is an apocalyptic number.

It is an amenable number.

1499368313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1499368313 is an equidigital number, since it uses as much as digits as its factorization.

1499368313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 47.

The square root of 1499368313 is about 38721.6775592174. The cubic root of 1499368313 is about 1144.5535308567.

The spelling of 1499368313 in words is "one billion, four hundred ninety-nine million, three hundred sixty-eight thousand, three hundred thirteen".