1313511169 has 2 divisors, whose sum is σ = 1313511170. Its totient is φ = 1313511168.

The previous prime is 1313511151. The next prime is 1313511179. The reversal of 1313511169 is 9611153131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1305738225 + 7772944 = 36135^2 + 2788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313511169 is a prime.

It is a super-2 number, since 2×1313511169² = 3450623182175493122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1313511169.

It is not a weakly prime, because it can be changed into another prime (1313511179) 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, 656755584 + 656755585.

It is an arithmetic number, because the mean of its divisors is an integer number (656755585).

Almost surely, 2^1313511169 is an apocalyptic number.

It is an amenable number.

1313511169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313511169 is an equidigital number, since it uses as much as digits as its factorization.

1313511169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 31.

The square root of 1313511169 is about 36242.3946366683. The cubic root of 1313511169 is about 1095.1608832090.

The spelling of 1313511169 in words is "one billion, three hundred thirteen million, five hundred eleven thousand, one hundred sixty-nine".