109517920 has 48 divisors (see below), whose sum is σ = 267669360. Its totient is φ = 42294784.

The previous prime is 109517899. The next prime is 109517921. The reversal of 109517920 is 29715901.

It is a super-2 number, since 2×109517920² = 23988349602252800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109517921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7162 + ... + 16441.

It is an arithmetic number, because the mean of its divisors is an integer number (5576445).

Almost surely, 2^109517920 is an apocalyptic number.

109517920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109517920 is an abundant number, since it is smaller than the sum of its proper divisors (158151440).

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

109517920 is a wasteful number, since it uses less digits than its factorization.

109517920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23647 (or 23639 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 109517920 is about 10465.0809839198. The cubic root of 109517920 is about 478.4410068390.

The spelling of 109517920 in words is "one hundred nine million, five hundred seventeen thousand, nine hundred twenty".