109381105 has 4 divisors (see below), whose sum is σ = 131257332. Its totient is φ = 87504880.

The previous prime is 109381099. The next prime is 109381117. The reversal of 109381105 is 501183901.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21790224 + 87590881 = 4668^2 + 9359^2 .

It is not a de Polignac number, because 109381105 - 2⁵ = 109381073 is a prime.

It is a super-2 number, since 2×109381105² = 23928452262042050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10938106 + ... + 10938115.

It is an arithmetic number, because the mean of its divisors is an integer number (32814333).

Almost surely, 2^109381105 is an apocalyptic number.

It is an amenable number.

109381105 is a deficient number, since it is larger than the sum of its proper divisors (21876227).

109381105 is an equidigital number, since it uses as much as digits as its factorization.

109381105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21876226.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 109381105 is about 10458.5422024296. The cubic root of 109381105 is about 478.2416933903.

The spelling of 109381105 in words is "one hundred nine million, three hundred eighty-one thousand, one hundred five".