113445900 has 72 divisors (see below), whose sum is σ = 364716240. Its totient is φ = 30251520.

The previous prime is 113445889. The next prime is 113445901. The reversal of 113445900 is 9544311.

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

It is not an unprimeable number, because it can be changed into a prime (113445901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18309 + ... + 23708.

Almost surely, 2^113445900 is an apocalyptic number.

113445900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113445900 is an abundant number, since it is smaller than the sum of its proper divisors (251270340).

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

113445900 is a wasteful number, since it uses less digits than its factorization.

113445900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42040 (or 42027 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 113445900 is about 10651.0985348930. The cubic root of 113445900 is about 484.0938904435.

The spelling of 113445900 in words is "one hundred thirteen million, four hundred forty-five thousand, nine hundred".