113633520 has 480 divisors, whose sum is σ = 487635456. Its totient is φ = 21288960.

The previous prime is 113633519. The next prime is 113633539. The reversal of 113633520 is 25336311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2642619 + ... + 2642661.

Almost surely, 2^113633520 is an apocalyptic number.

113633520 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 113633520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243817728).

113633520 is an abundant number, since it is smaller than the sum of its proper divisors (374001936).

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

113633520 is a wasteful number, since it uses less digits than its factorization.

113633520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 113633520 is about 10659.9024385779. The cubic root of 113633520 is about 484.3606127950.

Adding to 113633520 its reverse (25336311), we get a palindrome (138969831).

The spelling of 113633520 in words is "one hundred thirteen million, six hundred thirty-three thousand, five hundred twenty".