109381100 has 72 divisors (see below), whose sum is σ = 260816640. Its totient is φ = 39631680.

The previous prime is 109381099. The next prime is 109381117. The reversal of 109381100 is 1183901.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42449 + ... + 44951.

Almost surely, 2^109381100 is an apocalyptic number.

109381100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109381100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130408320).

109381100 is an abundant number, since it is smaller than the sum of its proper divisors (151435540).

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

109381100 is a wasteful number, since it uses less digits than its factorization.

109381100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559 (or 2552 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 109381100 is about 10458.5419633905. The cubic root of 109381100 is about 478.2416861032.

The spelling of 109381100 in words is "one hundred nine million, three hundred eighty-one thousand, one hundred".