116691313 has 2 divisors, whose sum is σ = 116691314. Its totient is φ = 116691312.

The previous prime is 116691299. The next prime is 116691317. The reversal of 116691313 is 313196611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109139809 + 7551504 = 10447^2 + 2748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116691313 is a prime.

It is not a weakly prime, because it can be changed into another prime (116691317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58345656 + 58345657.

It is an arithmetic number, because the mean of its divisors is an integer number (58345657).

Almost surely, 2^116691313 is an apocalyptic number.

It is an amenable number.

116691313 is a deficient number, since it is larger than the sum of its proper divisors (1).

116691313 is an equidigital number, since it uses as much as digits as its factorization.

116691313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 31.

The square root of 116691313 is about 10802.3753406369. The cubic root of 116691313 is about 488.6668090998. Note that the first 3 decimals are identical.

The spelling of 116691313 in words is "one hundred sixteen million, six hundred ninety-one thousand, three hundred thirteen".