113681232 has 120 divisors (see below), whose sum is σ = 377156416. Its totient is φ = 32472576.

The previous prime is 113681231. The next prime is 113681251. The reversal of 113681232 is 232186311.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 113681196 and 113681205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113681231) 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, 25128 + ... + 29304.

Almost surely, 2^113681232 is an apocalyptic number.

113681232 is a gapful number since it is divisible by the number (12) 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 113681232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188578208).

113681232 is an abundant number, since it is smaller than the sum of its proper divisors (263475184).

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

113681232 is an equidigital number, since it uses as much as digits as its factorization.

113681232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207 (or 4189 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 113681232 is about 10662.1401228834. The cubic root of 113681232 is about 484.4283937922.

The spelling of 113681232 in words is "one hundred thirteen million, six hundred eighty-one thousand, two hundred thirty-two".