116115997 has 2 divisors, whose sum is σ = 116115998. Its totient is φ = 116115996.

The previous prime is 116115943. The next prime is 116116003. The reversal of 116115997 is 799511611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83064996 + 33051001 = 9114^2 + 5749^2 .

It is an emirp because it is prime and its reverse (799511611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116115997 - 2⁷ = 116115869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116116997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58057998 + 58057999.

It is an arithmetic number, because the mean of its divisors is an integer number (58057999).

Almost surely, 2^116115997 is an apocalyptic number.

It is an amenable number.

116115997 is a deficient number, since it is larger than the sum of its proper divisors (1).

116115997 is an equidigital number, since it uses as much as digits as its factorization.

116115997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 40.

The square root of 116115997 is about 10775.7132942557. The cubic root of 116115997 is about 487.8624043791.

The spelling of 116115997 in words is "one hundred sixteen million, one hundred fifteen thousand, nine hundred ninety-seven".