109189110 has 16 divisors (see below), whose sum is σ = 262053936. Its totient is φ = 29117088.

The previous prime is 109189097. The next prime is 109189121. The reversal of 109189110 is 11981901.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 3639637 = 109189110 / (1 + 0 + 9 + 1 + 8 + 9 + 1 + 1 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1819789 + ... + 1819848.

It is an arithmetic number, because the mean of its divisors is an integer number (16378371).

Almost surely, 2^109189110 is an apocalyptic number.

109189110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109189110 is an abundant number, since it is smaller than the sum of its proper divisors (152864826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109189110 is a wasteful number, since it uses less digits than its factorization.

109189110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639647.

The product of its (nonzero) digits is 648, while the sum is 30.

The square root of 109189110 is about 10449.3593105032. The cubic root of 109189110 is about 477.9617127063.

It can be divided in two parts, 1091891 and 10, that added together give a palindrome (1091901).

The spelling of 109189110 in words is "one hundred nine million, one hundred eighty-nine thousand, one hundred ten".