116520997 has 2 divisors, whose sum is σ = 116520998. Its totient is φ = 116520996.

The previous prime is 116520983. The next prime is 116521019. The reversal of 116520997 is 799025611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80892036 + 35628961 = 8994^2 + 5969^2 .

It is a cyclic number.

It is not a de Polignac number, because 116520997 - 2¹⁹ = 115996709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116520917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58260498 + 58260499.

It is an arithmetic number, because the mean of its divisors is an integer number (58260499).

Almost surely, 2^116520997 is an apocalyptic number.

It is an amenable number.

116520997 is a deficient number, since it is larger than the sum of its proper divisors (1).

116520997 is an equidigital number, since it uses as much as digits as its factorization.

116520997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 116520997 is about 10794.4891958814. The cubic root of 116520997 is about 488.4289499182.

The spelling of 116520997 in words is "one hundred sixteen million, five hundred twenty thousand, nine hundred ninety-seven".