115105155 has 32 divisors (see below), whose sum is σ = 202929408. Its totient is φ = 55248000.

The previous prime is 115105121. The next prime is 115105157. The reversal of 115105155 is 551501511.

It is not a de Polignac number, because 115105155 - 2⁷ = 115105027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115105157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13212 + ... + 20118.

It is an arithmetic number, because the mean of its divisors is an integer number (6341544).

Almost surely, 2^115105155 is an apocalyptic number.

115105155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115105155 is a deficient number, since it is larger than the sum of its proper divisors (87824253).

115105155 is a wasteful number, since it uses less digits than its factorization.

115105155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7027.

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

The square root of 115105155 is about 10728.7070516442. The cubic root of 115105155 is about 486.4425890826.

Adding to 115105155 its reverse (551501511), we get a palindrome (666606666).

The spelling of 115105155 in words is "one hundred fifteen million, one hundred five thousand, one hundred fifty-five".