1299316757 has 2 divisors, whose sum is σ = 1299316758. Its totient is φ = 1299316756.

The previous prime is 1299316741. The next prime is 1299316763. The reversal of 1299316757 is 7576139921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123992676 + 175324081 = 33526^2 + 13241^2 .

It is a cyclic number.

It is not a de Polignac number, because 1299316757 - 2⁴ = 1299316741 is a prime.

It is a super-3 number, since 3×1299316757³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1299316717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649658378 + 649658379.

It is an arithmetic number, because the mean of its divisors is an integer number (649658379).

Almost surely, 2^1299316757 is an apocalyptic number.

It is an amenable number.

1299316757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299316757 is an equidigital number, since it uses as much as digits as its factorization.

1299316757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 714420, while the sum is 50.

The square root of 1299316757 is about 36046.0366337272. The cubic root of 1299316757 is about 1091.2016478757.

The spelling of 1299316757 in words is "one billion, two hundred ninety-nine million, three hundred sixteen thousand, seven hundred fifty-seven".