116505089 has 2 divisors, whose sum is σ = 116505090. Its totient is φ = 116505088.

The previous prime is 116505083. The next prime is 116505121. The reversal of 116505089 is 980505611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86638864 + 29866225 = 9308^2 + 5465^2 .

It is a cyclic number.

It is not a de Polignac number, because 116505089 - 2⁴ = 116505073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116505083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58252544 + 58252545.

It is an arithmetic number, because the mean of its divisors is an integer number (58252545).

Almost surely, 2^116505089 is an apocalyptic number.

It is an amenable number.

116505089 is a deficient number, since it is larger than the sum of its proper divisors (1).

116505089 is an equidigital number, since it uses as much as digits as its factorization.

116505089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 116505089 is about 10793.7523132597. The cubic root of 116505089 is about 488.4067213598.

The spelling of 116505089 in words is "one hundred sixteen million, five hundred five thousand, eighty-nine".