113125540 has 48 divisors (see below), whose sum is σ = 260495424. Its totient is φ = 40924800.

The previous prime is 113125513. The next prime is 113125553. The reversal of 113125540 is 45521311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45202 + ... + 47638.

It is an arithmetic number, because the mean of its divisors is an integer number (5426988).

Almost surely, 2^113125540 is an apocalyptic number.

113125540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113125540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130247712).

113125540 is an abundant number, since it is smaller than the sum of its proper divisors (147369884).

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

113125540 is a wasteful number, since it uses less digits than its factorization.

113125540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668 (or 2666 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 113125540 is about 10636.0490784877. The cubic root of 113125540 is about 483.6377830857.

Adding to 113125540 its reverse (45521311), we get a palindrome (158646851).

The spelling of 113125540 in words is "one hundred thirteen million, one hundred twenty-five thousand, five hundred forty".