113531648 has 36 divisors (see below), whose sum is σ = 227497200. Its totient is φ = 56546304.

The previous prime is 113531617. The next prime is 113531659. The reversal of 113531648 is 846135311.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 80453 + ... + 81851.

Almost surely, 2^113531648 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 113531648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113748600).

113531648 is an abundant number, since it is smaller than the sum of its proper divisors (113965552).

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

113531648 is an equidigital number, since it uses as much as digits as its factorization.

113531648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732 (or 1718 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 113531648 is about 10655.1230870413. The cubic root of 113531648 is about 484.2158270637.

Adding to 113531648 its reverse (846135311), we get a palindrome (959666959).

The spelling of 113531648 in words is "one hundred thirteen million, five hundred thirty-one thousand, six hundred forty-eight".