115109291 has 8 divisors (see below), whose sum is σ = 125803584. Its totient is φ = 104453320.

The previous prime is 115109279. The next prime is 115109299. The reversal of 115109291 is 192901511.

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

It is a cyclic number.

It is not a de Polignac number, because 115109291 - 2¹⁸ = 114847147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115109299) 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 7 ways as a sum of consecutive naturals, for example, 3101 + ... + 15486.

It is an arithmetic number, because the mean of its divisors is an integer number (15725448).

Almost surely, 2^115109291 is an apocalyptic number.

115109291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115109291 is a deficient number, since it is larger than the sum of its proper divisors (10694293).

115109291 is a wasteful number, since it uses less digits than its factorization.

115109291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19161.

The product of its (nonzero) digits is 810, while the sum is 29.

The square root of 115109291 is about 10728.8998038009. The cubic root of 115109291 is about 486.4484153564.

The spelling of 115109291 in words is "one hundred fifteen million, one hundred nine thousand, two hundred ninety-one".