1313137369 has 2 divisors, whose sum is σ = 1313137370. Its totient is φ = 1313137368.

The previous prime is 1313137361. The next prime is 1313137379. The reversal of 1313137369 is 9637313131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 975937600 + 337199769 = 31240^2 + 18363^2 .

It is an emirp because it is prime and its reverse (9637313131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1313137369 - 2³ = 1313137361 is a prime.

It is a super-2 number, since 2×1313137369² = 3448659499728484322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1313137361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656568684 + 656568685.

It is an arithmetic number, because the mean of its divisors is an integer number (656568685).

Almost surely, 2^1313137369 is an apocalyptic number.

It is an amenable number.

1313137369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313137369 is an equidigital number, since it uses as much as digits as its factorization.

1313137369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 37.

The square root of 1313137369 is about 36237.2373257123. The cubic root of 1313137369 is about 1095.0569861157.

The spelling of 1313137369 in words is "one billion, three hundred thirteen million, one hundred thirty-seven thousand, three hundred sixty-nine".