113509620 has 96 divisors (see below), whose sum is σ = 403603200. Its totient is φ = 25944192.

The previous prime is 113509619. The next prime is 113509633. The reversal of 113509620 is 26905311.

113509620 is a `hidden beast` number, since 1 + 1 + 35 + 0 + 9 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 11235 + ... + 18794.

It is an arithmetic number, because the mean of its divisors is an integer number (4204200).

Almost surely, 2^113509620 is an apocalyptic number.

113509620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113509620 is an abundant number, since it is smaller than the sum of its proper divisors (290093580).

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

113509620 is a wasteful number, since it uses less digits than its factorization.

113509620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30054 (or 30046 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 113509620 is about 10654.0893557357. The cubic root of 113509620 is about 484.1845083481.

The spelling of 113509620 in words is "one hundred thirteen million, five hundred nine thousand, six hundred twenty".