109525840 has 40 divisors (see below), whose sum is σ = 255126528. Its totient is φ = 43728000.

The previous prime is 109525831. The next prime is 109525841. The reversal of 109525840 is 48525901.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 109525796 and 109525805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109525841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59169 + ... + 60991.

Almost surely, 2^109525840 is an apocalyptic number.

109525840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109525840 is an abundant number, since it is smaller than the sum of its proper divisors (145600688).

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

109525840 is a wasteful number, since it uses less digits than its factorization.

109525840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587 (or 2581 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 109525840 is about 10465.4593783551. The cubic root of 109525840 is about 478.4525396897.

The spelling of 109525840 in words is "one hundred nine million, five hundred twenty-five thousand, eight hundred forty".