2543112 has 144 divisors (see below), whose sum is σ = 8564400. Its totient is φ = 673920.

The previous prime is 2543111. The next prime is 2543113. The reversal of 2543112 is 2113452.

It is an interprime number because it is at equal distance from previous prime (2543111) and next prime (2543113).

It is a Harshad number since it is a multiple of its sum of digits (18).

Its product of digits (240) is a multiple of the sum of its prime divisors (48).

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (2543111) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 133839 + ... + 133857.

It is an arithmetic number, because the mean of its divisors is an integer number (59475).

2^2543112 is an apocalyptic number.

2543112 is a gapful number since it is divisible by the number (22) 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 2543112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4282200).

2543112 is an abundant number, since it is smaller than the sum of its proper divisors (6021288).

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

2543112 is a wasteful number, since it uses less digits than its factorization.

2543112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 48 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2543112 is about 1594.7137674203. The cubic root of 2543112 is about 136.4965985547.

Adding to 2543112 its reverse (2113452), we get a palindrome (4656564).

The spelling of 2543112 in words is "two million, five hundred forty-three thousand, one hundred twelve".