1317070757 has 12 divisors (see below), whose sum is σ = 1397359236. Its totient is φ = 1240606080.

The previous prime is 1317070739. The next prime is 1317070763. The reversal of 1317070757 is 7570707131.

It can be written as a sum of positive squares in 6 ways, for example, as 144624676 + 1172446081 = 12026^2 + 34241^2 .

It is not a de Polignac number, because 1317070757 - 2⁸ = 1317070501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1317070757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317070787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15383 + ... + 53579.

It is an arithmetic number, because the mean of its divisors is an integer number (116446603).

Almost surely, 2^1317070757 is an apocalyptic number.

It is an amenable number.

1317070757 is a deficient number, since it is larger than the sum of its proper divisors (80288479).

1317070757 is an equidigital number, since it uses as much as digits as its factorization.

1317070757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38296 (or 38267 counting only the distinct ones).

The product of its (nonzero) digits is 36015, while the sum is 38.

The square root of 1317070757 is about 36291.4694797552. The cubic root of 1317070757 is about 1096.1492786550.

Adding to 1317070757 its reverse (7570707131), we get a palindrome (8887777888).

The spelling of 1317070757 in words is "one billion, three hundred seventeen million, seventy thousand, seven hundred fifty-seven".