115858089 has 12 divisors (see below), whose sum is σ = 168103936. Its totient is φ = 76891032.

The previous prime is 115858021. The next prime is 115858091. The reversal of 115858089 is 980858511.

115858089 is a `hidden beast` number, since 11 + 58 + 580 + 8 + 9 = 666.

It is not a de Polignac number, because 115858089 - 2²⁵ = 82303657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115858189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26857 + ... + 30870.

Almost surely, 2^115858089 is an apocalyptic number.

It is an amenable number.

115858089 is a deficient number, since it is larger than the sum of its proper divisors (52245847).

115858089 is a wasteful number, since it uses less digits than its factorization.

115858089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57956 (or 57953 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 45.

The square root of 115858089 is about 10763.7395453439. The cubic root of 115858089 is about 487.5009356984.

The spelling of 115858089 in words is "one hundred fifteen million, eight hundred fifty-eight thousand, eighty-nine".