112540 has 24 divisors (see below), whose sum is σ = 250992. Its totient is φ = 42240.

The previous prime is 112507. The next prime is 112543. The reversal of 112540 is 45211.

112540 = T₁₄₅ + T₁₄₆ + ... + T₁₅₄.

It is a self number, because there is not a number n which added to its sum of digits gives 112540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175 + ... + 505.

It is an arithmetic number, because the mean of its divisors is an integer number (10458).

2¹¹²⁵⁴⁰ is an apocalyptic number.

112540 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 112540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125496).

112540 is an abundant number, since it is smaller than the sum of its proper divisors (138452).

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

112540 is a wasteful number, since it uses less digits than its factorization.

112540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 112540 is about 335.4698198050. The cubic root of 112540 is about 48.2801899709.

Adding to 112540 its reverse (45211), we get a palindrome (157751).

The spelling of 112540 in words is "one hundred twelve thousand, five hundred forty".