112140 has 72 divisors (see below), whose sum is σ = 393120. Its totient is φ = 25344.

The previous prime is 112139. The next prime is 112153. The reversal of 112140 is 41211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1216 + ... + 1304.

It is an arithmetic number, because the mean of its divisors is an integer number (5460).

2¹¹²¹⁴⁰ is an apocalyptic number.

112140 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 112140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196560).

112140 is an abundant number, since it is smaller than the sum of its proper divisors (280980).

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

112140 is a wasteful number, since it uses less digits than its factorization.

112140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 112140 is about 334.8731102970. The cubic root of 112140 is about 48.2229214396. Note that the first 3 decimals are identical.

Adding to 112140 its reverse (41211), we get a palindrome (153351).

It can be divided in two parts, 112 and 140, that added together give a palindrome (252).

The spelling of 112140 in words is "one hundred twelve thousand, one hundred forty", and thus it is an iban number.