113513240 has 32 divisors (see below), whose sum is σ = 256949280. Its totient is φ = 45130752.

The previous prime is 113513219. The next prime is 113513243. The reversal of 113513240 is 42315311.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113513243) 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, 1817 + ... + 15176.

It is an arithmetic number, because the mean of its divisors is an integer number (8029665).

Almost surely, 2^113513240 is an apocalyptic number.

113513240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113513240 is an abundant number, since it is smaller than the sum of its proper divisors (143436040).

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

113513240 is a wasteful number, since it uses less digits than its factorization.

113513240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17171 (or 17167 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 113513240 is about 10654.2592421998. The cubic root of 113513240 is about 484.1896554281.

Adding to 113513240 its reverse (42315311), we get a palindrome (155828551).

The spelling of 113513240 in words is "one hundred thirteen million, five hundred thirteen thousand, two hundred forty".