113509500 has 96 divisors (see below), whose sum is σ = 356026944. Its totient is φ = 27936000.

The previous prime is 113509489. The next prime is 113509523. The reversal of 113509500 is 5905311.

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, 16590 + ... + 22410.

It is an arithmetic number, because the mean of its divisors is an integer number (3708614).

Almost surely, 2^113509500 is an apocalyptic number.

113509500 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 113509500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178013472).

113509500 is an abundant number, since it is smaller than the sum of its proper divisors (242517444).

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

113509500 is a wasteful number, since it uses less digits than its factorization.

113509500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5856 (or 5844 counting only the distinct ones).

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 113509500 is about 10654.0837240938. The cubic root of 113509500 is about 484.1843377248.

The spelling of 113509500 in words is "one hundred thirteen million, five hundred nine thousand, five hundred".