115105617 has 20 divisors (see below), whose sum is σ = 187580976. Its totient is φ = 69760440.

The previous prime is 115105609. The next prime is 115105633. The reversal of 115105617 is 716501511.

It is a happy number.

It is not a de Polignac number, because 115105617 - 2³ = 115105609 is a prime.

It is a super-3 number, since 3×115105617³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (115105217) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 63703 + ... + 65484.

Almost surely, 2^115105617 is an apocalyptic number.

It is an amenable number.

115105617 is a deficient number, since it is larger than the sum of its proper divisors (72475359).

115105617 is a wasteful number, since it uses less digits than its factorization.

115105617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129210 (or 129201 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 27.

The square root of 115105617 is about 10728.7285826420. The cubic root of 115105617 is about 486.4432398967.

The spelling of 115105617 in words is "one hundred fifteen million, one hundred five thousand, six hundred seventeen".