1316159969 has 2 divisors, whose sum is σ = 1316159970. Its totient is φ = 1316159968.

The previous prime is 1316159951. The next prime is 1316160011. The reversal of 1316159969 is 9699516131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1116361744 + 199798225 = 33412^2 + 14135^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316159969 - 2¹² = 1316155873 is a prime.

It is a super-2 number, since 2×1316159969² = 3464554127996161922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1316159909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658079984 + 658079985.

It is an arithmetic number, because the mean of its divisors is an integer number (658079985).

Almost surely, 2^1316159969 is an apocalyptic number.

It is an amenable number.

1316159969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316159969 is an equidigital number, since it uses as much as digits as its factorization.

1316159969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 393660, while the sum is 50.

The square root of 1316159969 is about 36278.9190715490. The cubic root of 1316159969 is about 1095.8965486674.

The spelling of 1316159969 in words is "one billion, three hundred sixteen million, one hundred fifty-nine thousand, nine hundred sixty-nine".