113512 has 16 divisors (see below), whose sum is σ = 243360. Its totient is φ = 48624.

The previous prime is 113501. The next prime is 113513. The reversal of 113512 is 215311.

It is a junction number, because it is equal to n+sod(n) for n = 113492 and 113501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113513) by changing a digit.

113512 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958 + ... + 1069.

It is an arithmetic number, because the mean of its divisors is an integer number (15210).

2¹¹³⁵¹² is an apocalyptic number.

It is an amenable number.

113512 is an abundant number, since it is smaller than the sum of its proper divisors (129848).

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

113512 is a wasteful number, since it uses less digits than its factorization.

113512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040 (or 2036 counting only the distinct ones).

The product of its digits is 30, while the sum is 13.

The square root of 113512 is about 336.9154196531. The cubic root of 113512 is about 48.4187892352.

Adding to 113512 its reverse (215311), we get a palindrome (328823).

It can be divided in two parts, 113 and 512, that added together give a 4-th power (625 = 5⁴).

The spelling of 113512 in words is "one hundred thirteen thousand, five hundred twelve".