115515105 has 32 divisors (see below), whose sum is σ = 187719168. Its totient is φ = 60652800.

The previous prime is 115515077. The next prime is 115515133. The reversal of 115515105 is 501515511.

It is an interprime number because it is at equal distance from previous prime (115515077) and next prime (115515133).

It is not a de Polignac number, because 115515105 - 2⁹ = 115514593 is a prime.

It is a super-2 number, since 2×115515105² = 26687478966322050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 426120 + ... + 426390.

It is an arithmetic number, because the mean of its divisors is an integer number (5866224).

Almost surely, 2^115515105 is an apocalyptic number.

115515105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115515105 is a deficient number, since it is larger than the sum of its proper divisors (72204063).

115515105 is a wasteful number, since it uses less digits than its factorization.

115515105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617.

The product of its (nonzero) digits is 625, while the sum is 24.

The square root of 115515105 is about 10747.7953553275. The cubic root of 115515105 is about 487.0193974905.

The spelling of 115515105 in words is "one hundred fifteen million, five hundred fifteen thousand, one hundred five".