1317743039 has 2 divisors, whose sum is σ = 1317743040. Its totient is φ = 1317743038.

The previous prime is 1317743033. The next prime is 1317743057. The reversal of 1317743039 is 9303477131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1317743039 - 2⁴ = 1317743023 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1317742993 and 1317743011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1317743033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658871519 + 658871520.

It is an arithmetic number, because the mean of its divisors is an integer number (658871520).

Almost surely, 2^1317743039 is an apocalyptic number.

1317743039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317743039 is an equidigital number, since it uses as much as digits as its factorization.

1317743039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 1317743039 is about 36300.7305573869. The cubic root of 1317743039 is about 1096.3357520789.

The spelling of 1317743039 in words is "one billion, three hundred seventeen million, seven hundred forty-three thousand, thirty-nine".