109111655 has 8 divisors (see below), whose sum is σ = 136626912. Its totient is φ = 83494048.

The previous prime is 109111649. The next prime is 109111693. The reversal of 109111655 is 556111901.

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

It is not a de Polignac number, because 109111655 - 2⁸ = 109111399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474284 + ... + 474513.

It is an arithmetic number, because the mean of its divisors is an integer number (17078364).

Almost surely, 2^109111655 is an apocalyptic number.

109111655 is a deficient number, since it is larger than the sum of its proper divisors (27515257).

109111655 is an equidigital number, since it uses as much as digits as its factorization.

109111655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948825.

The product of its (nonzero) digits is 1350, while the sum is 29.

The square root of 109111655 is about 10445.6524449170. The cubic root of 109111655 is about 477.8486694379.

The spelling of 109111655 in words is "one hundred nine million, one hundred eleven thousand, six hundred fifty-five".