115920085 has 8 divisors (see below), whose sum is σ = 139216896. Its totient is φ = 92660880.

The previous prime is 115920053. The next prime is 115920089. The reversal of 115920085 is 580029511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115920085 - 2⁵ = 115920053 is a prime.

It is a super-2 number, since 2×115920085² = 26874932212814450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115920089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2101 + ... + 15370.

It is an arithmetic number, because the mean of its divisors is an integer number (17402112).

Almost surely, 2^115920085 is an apocalyptic number.

It is an amenable number.

115920085 is a deficient number, since it is larger than the sum of its proper divisors (23296811).

115920085 is a wasteful number, since it uses less digits than its factorization.

115920085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18803.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 115920085 is about 10766.6190143424. The cubic root of 115920085 is about 487.5878745821.

Adding to 115920085 its reverse (580029511), we get a palindrome (695949596).

The spelling of 115920085 in words is "one hundred fifteen million, nine hundred twenty thousand, eighty-five".