112531520 has 28 divisors (see below), whose sum is σ = 267966444. Its totient is φ = 45012480.

The previous prime is 112531487. The next prime is 112531537. The reversal of 112531520 is 25135211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34668544 + 77862976 = 5888^2 + 8824^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 112531492 and 112531501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175511 + ... + 176150.

Almost surely, 2^112531520 is an apocalyptic number.

112531520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112531520 is an abundant number, since it is smaller than the sum of its proper divisors (155434924).

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

112531520 is an equidigital number, since it uses as much as digits as its factorization.

112531520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351678 (or 351668 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 112531520 is about 10608.0874807856. The cubic root of 112531520 is about 482.7897728713.

Adding to 112531520 its reverse (25135211), we get a palindrome (137666731).

The spelling of 112531520 in words is "one hundred twelve million, five hundred thirty-one thousand, five hundred twenty".