109108505 has 16 divisors (see below), whose sum is σ = 143671104. Its totient is φ = 78886080.

The previous prime is 109108477. The next prime is 109108511. The reversal of 109108505 is 505801901.

It is a de Polignac number, because none of the positive numbers 2^k-109108505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3782 + ... + 15248.

It is an arithmetic number, because the mean of its divisors is an integer number (8979444).

Almost surely, 2^109108505 is an apocalyptic number.

It is an amenable number.

109108505 is a deficient number, since it is larger than the sum of its proper divisors (34562599).

109108505 is a wasteful number, since it uses less digits than its factorization.

109108505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11656.

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 109108505 is about 10445.5016633956. The cubic root of 109108505 is about 477.8440709746.

The spelling of 109108505 in words is "one hundred nine million, one hundred eight thousand, five hundred five".