109155 has 16 divisors (see below), whose sum is σ = 184320. Its totient is φ = 55008.

The previous prime is 109147. The next prime is 109159. The reversal of 109155 is 551901.

109155 = T₅₆ + T₅₇ + ... + T₉₃.

It is a happy number.

It is not a de Polignac number, because 109155 - 2³ = 109147 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (109159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94 + ... + 476.

It is an arithmetic number, because the mean of its divisors is an integer number (11520).

2¹⁰⁹¹⁵⁵ is an apocalyptic number.

109155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109155 is a deficient number, since it is larger than the sum of its proper divisors (75165).

109155 is a wasteful number, since it uses less digits than its factorization.

109155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 109155 is about 330.3861377237. The cubic root of 109155 is about 47.7911936766.

The spelling of 109155 in words is "one hundred nine thousand, one hundred fifty-five".