109655155 has 4 divisors (see below), whose sum is σ = 131586192. Its totient is φ = 87724120.

The previous prime is 109655149. The next prime is 109655171. The reversal of 109655155 is 551556901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 109655155 - 2¹⁷ = 109524083 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 10965511 + ... + 10965520.

It is an arithmetic number, because the mean of its divisors is an integer number (32896548).

Almost surely, 2^109655155 is an apocalyptic number.

109655155 is a deficient number, since it is larger than the sum of its proper divisors (21931037).

109655155 is an equidigital number, since it uses as much as digits as its factorization.

109655155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21931036.

The product of its (nonzero) digits is 33750, while the sum is 37.

The square root of 109655155 is about 10471.6357365982. The cubic root of 109655155 is about 478.6407654579.

The spelling of 109655155 in words is "one hundred nine million, six hundred fifty-five thousand, one hundred fifty-five".