116599909 has 2 divisors, whose sum is σ = 116599910. Its totient is φ = 116599908.

The previous prime is 116599883. The next prime is 116599921. The reversal of 116599909 is 909995611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79121025 + 37478884 = 8895^2 + 6122^2 .

It is a cyclic number.

It is not a de Polignac number, because 116599909 - 2⁵ = 116599877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116599939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58299954 + 58299955.

It is an arithmetic number, because the mean of its divisors is an integer number (58299955).

Almost surely, 2^116599909 is an apocalyptic number.

It is an amenable number.

116599909 is a deficient number, since it is larger than the sum of its proper divisors (1).

116599909 is an equidigital number, since it uses as much as digits as its factorization.

116599909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196830, while the sum is 49.

The square root of 116599909 is about 10798.1437756681. The cubic root of 116599909 is about 488.5391852941.

The spelling of 116599909 in words is "one hundred sixteen million, five hundred ninety-nine thousand, nine hundred nine".