1316695997 has 2 divisors, whose sum is σ = 1316695998. Its totient is φ = 1316695996.

The previous prime is 1316695957. The next prime is 1316696027. The reversal of 1316695997 is 7995966131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1316673796 + 22201 = 36286^2 + 149^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316695997 - 2²⁶ = 1249587133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1316695937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658347998 + 658347999.

It is an arithmetic number, because the mean of its divisors is an integer number (658347999).

Almost surely, 2^1316695997 is an apocalyptic number.

It is an amenable number.

1316695997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316695997 is an equidigital number, since it uses as much as digits as its factorization.

1316695997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2755620, while the sum is 56.

The square root of 1316695997 is about 36286.3059155930. The cubic root of 1316695997 is about 1096.0453024968.

The spelling of 1316695997 in words is "one billion, three hundred sixteen million, six hundred ninety-five thousand, nine hundred ninety-seven".