113140240 has 40 divisors (see below), whose sum is σ = 263565720. Its totient is φ = 45167616.

The previous prime is 113140211. The next prime is 113140241. The reversal of 113140240 is 42041311.

It can be written as a sum of positive squares in 4 ways, for example, as 68624656 + 44515584 = 8284^2 + 6672^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (113140241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53116 + ... + 55204.

It is an arithmetic number, because the mean of its divisors is an integer number (6589143).

Almost surely, 2^113140240 is an apocalyptic number.

113140240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113140240 is an abundant number, since it is smaller than the sum of its proper divisors (150425480).

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

113140240 is a wasteful number, since it uses less digits than its factorization.

113140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 113140240 is about 10636.7401021178. The cubic root of 113140240 is about 483.6587308088.

Adding to 113140240 its reverse (42041311), we get a palindrome (155181551).

The spelling of 113140240 in words is "one hundred thirteen million, one hundred forty thousand, two hundred forty".