1313340757 has 2 divisors, whose sum is σ = 1313340758. Its totient is φ = 1313340756.

The previous prime is 1313340751. The next prime is 1313340799. The reversal of 1313340757 is 7570433131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 911979601 + 401361156 = 30199^2 + 20034^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313340757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313340751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656670378 + 656670379.

It is an arithmetic number, because the mean of its divisors is an integer number (656670379).

Almost surely, 2^1313340757 is an apocalyptic number.

It is an amenable number.

1313340757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313340757 is an equidigital number, since it uses as much as digits as its factorization.

1313340757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 1313340757 is about 36240.0435568171. The cubic root of 1313340757 is about 1095.1135199198.

Adding to 1313340757 its reverse (7570433131), we get a palindrome (8883773888).

The spelling of 1313340757 in words is "one billion, three hundred thirteen million, three hundred forty thousand, seven hundred fifty-seven".