116136909 has 60 divisors (see below), whose sum is σ = 208979100. Its totient is φ = 64012032.

The previous prime is 116136899. The next prime is 116136931. The reversal of 116136909 is 909631611.

It can be written as a sum of positive squares in 2 ways, for example, as 48024900 + 68112009 = 6930^2 + 8253^2 .

It is not a de Polignac number, because 116136909 - 2⁷ = 116136781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116136989) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 114597 + ... + 115605.

It is an arithmetic number, because the mean of its divisors is an integer number (3482985).

Almost surely, 2^116136909 is an apocalyptic number.

It is an amenable number.

116136909 is a deficient number, since it is larger than the sum of its proper divisors (92842191).

116136909 is a wasteful number, since it uses less digits than its factorization.

116136909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 116136909 is about 10776.6835807683. The cubic root of 116136909 is about 487.8916899397.

The spelling of 116136909 in words is "one hundred sixteen million, one hundred thirty-six thousand, nine hundred nine".