1312962709 has 2 divisors, whose sum is σ = 1312962710. Its totient is φ = 1312962708.

The previous prime is 1312962691. The next prime is 1312962737. The reversal of 1312962709 is 9072692131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1121915025 + 191047684 = 33495^2 + 13822^2 .

It is an emirp because it is prime and its reverse (9072692131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312962709 - 2⁹ = 1312962197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312962769) 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, 656481354 + 656481355.

It is an arithmetic number, because the mean of its divisors is an integer number (656481355).

Almost surely, 2^1312962709 is an apocalyptic number.

It is an amenable number.

1312962709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312962709 is an equidigital number, since it uses as much as digits as its factorization.

1312962709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 1312962709 is about 36234.8272936411. The cubic root of 1312962709 is about 1095.0084328979.

The spelling of 1312962709 in words is "one billion, three hundred twelve million, nine hundred sixty-two thousand, seven hundred nine".