116159209 has 4 divisors (see below), whose sum is σ = 116349316. Its totient is φ = 115969104.

The previous prime is 116159207. The next prime is 116159213. The reversal of 116159209 is 902951611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19333609 + 96825600 = 4397^2 + 9840^2 .

It is a cyclic number.

It is not a de Polignac number, because 116159209 - 2¹ = 116159207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116159203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94134 + ... + 95359.

It is an arithmetic number, because the mean of its divisors is an integer number (29087329).

Almost surely, 2^116159209 is an apocalyptic number.

It is an amenable number.

116159209 is a deficient number, since it is larger than the sum of its proper divisors (190107).

116159209 is an equidigital number, since it uses as much as digits as its factorization.

116159209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190106.

The product of its (nonzero) digits is 4860, while the sum is 34.

The square root of 116159209 is about 10777.7181722292. The cubic root of 116159209 is about 487.9229154088.

The spelling of 116159209 in words is "one hundred sixteen million, one hundred fifty-nine thousand, two hundred nine".