1317830009 has 2 divisors, whose sum is σ = 1317830010. Its totient is φ = 1317830008.

The previous prime is 1317829991. The next prime is 1317830023. The reversal of 1317830009 is 9000387131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 926898025 + 390931984 = 30445^2 + 19772^2 .

It is a cyclic number.

It is not a de Polignac number, because 1317830009 - 2⁸ = 1317829753 is a prime.

It is not a weakly prime, because it can be changed into another prime (1317830099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658915004 + 658915005.

It is an arithmetic number, because the mean of its divisors is an integer number (658915005).

Almost surely, 2^1317830009 is an apocalyptic number.

It is an amenable number.

1317830009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317830009 is an equidigital number, since it uses as much as digits as its factorization.

1317830009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1317830009 is about 36301.9284473979. The cubic root of 1317830009 is about 1096.3598706463.

The spelling of 1317830009 in words is "one billion, three hundred seventeen million, eight hundred thirty thousand, nine".