109345020 has 48 divisors (see below), whose sum is σ = 324178848. Its totient is φ = 27443200.

The previous prime is 109345009. The next prime is 109345039. The reversal of 109345020 is 20543901.

It is a congruent 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, 52581 + ... + 54620.

It is an arithmetic number, because the mean of its divisors is an integer number (6753726).

Almost surely, 2^109345020 is an apocalyptic number.

109345020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109345020 is an abundant number, since it is smaller than the sum of its proper divisors (214833828).

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

109345020 is a wasteful number, since it uses less digits than its factorization.

109345020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107230 (or 107228 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 109345020 is about 10456.8169152950. The cubic root of 109345020 is about 478.1890967083.

Adding to 109345020 its reverse (20543901), we get a palindrome (129888921).

The spelling of 109345020 in words is "one hundred nine million, three hundred forty-five thousand, twenty".