109873520 has 20 divisors (see below), whose sum is σ = 255456120. Its totient is φ = 43949376.

The previous prime is 109873487. The next prime is 109873559. The reversal of 109873520 is 25378901.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 686630 + ... + 686789.

It is an arithmetic number, because the mean of its divisors is an integer number (12772806).

Almost surely, 2^109873520 is an apocalyptic number.

109873520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109873520 is an abundant number, since it is smaller than the sum of its proper divisors (145582600).

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

109873520 is a wasteful number, since it uses less digits than its factorization.

109873520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373432 (or 1373426 counting only the distinct ones).

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

The square root of 109873520 is about 10482.0570500260. The cubic root of 109873520 is about 478.9582732207.

The spelling of 109873520 in words is "one hundred nine million, eight hundred seventy-three thousand, five hundred twenty".