113451520 has 160 divisors (see below), whose sum is σ = 335478528. Its totient is φ = 35831808.

The previous prime is 113451493. The next prime is 113451581. The reversal of 113451520 is 25154311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a junction number, because it is equal to n+sod(n) for n = 113451491 and 113451500.

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, 232717 + ... + 233203.

Almost surely, 2^113451520 is an apocalyptic number.

113451520 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 113451520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167739264).

113451520 is an abundant number, since it is smaller than the sum of its proper divisors (222027008).

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

113451520 is an equidigital number, since it uses as much as digits as its factorization.

113451520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 113451520 is about 10651.3623541780. The cubic root of 113451520 is about 484.1018841590.

The spelling of 113451520 in words is "one hundred thirteen million, four hundred fifty-one thousand, five hundred twenty".