109375820 has 24 divisors (see below), whose sum is σ = 237610800. Its totient is φ = 42241472.

The previous prime is 109375813. The next prime is 109375853. The reversal of 109375820 is 28573901.

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, 93710 + ... + 94869.

It is an arithmetic number, because the mean of its divisors is an integer number (9900450).

Almost surely, 2^109375820 is an apocalyptic number.

109375820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109375820 is an abundant number, since it is smaller than the sum of its proper divisors (128234980).

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

109375820 is a wasteful number, since it uses less digits than its factorization.

109375820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188617 (or 188615 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 109375820 is about 10458.2895351009. The cubic root of 109375820 is about 478.2339908166.

The spelling of 109375820 in words is "one hundred nine million, three hundred seventy-five thousand, eight hundred twenty".