113812500 has 84 divisors (see below), whose sum is σ = 332495744. Its totient is φ = 30300000.

The previous prime is 113812499. The next prime is 113812511. The reversal of 113812500 is 5218311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 187197 + ... + 187803.

Almost surely, 2^113812500 is an apocalyptic number.

113812500 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 113812500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166247872).

113812500 is an abundant number, since it is smaller than the sum of its proper divisors (218683244).

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

113812500 is an frugal number, since it uses more digits than its factorization.

113812500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 113812500 is about 10668.2941466759. The cubic root of 113812500 is about 484.6147789593.

The spelling of 113812500 in words is "one hundred thirteen million, eight hundred twelve thousand, five hundred".