113561328 has 80 divisors (see below), whose sum is σ = 310694400. Its totient is φ = 35642880.

The previous prime is 113561297. The next prime is 113561387. The reversal of 113561328 is 823165311.

It is a junction number, because it is equal to n+sod(n) for n = 113561295 and 113561304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217708 + ... + 218228.

It is an arithmetic number, because the mean of its divisors is an integer number (3883680).

Almost surely, 2^113561328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113561328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155347200).

113561328 is an abundant number, since it is smaller than the sum of its proper divisors (197133072).

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

113561328 is a wasteful number, since it uses less digits than its factorization.

113561328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 784 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 113561328 is about 10656.5157532845. The cubic root of 113561328 is about 484.2580187457.

The spelling of 113561328 in words is "one hundred thirteen million, five hundred sixty-one thousand, three hundred twenty-eight".