2543031140 has 96 divisors (see below), whose sum is σ = 5863705344. Its totient is φ = 920747520.

The previous prime is 2543031119. The next prime is 2543031143. The reversal of 2543031140 is 411303452.

2543031140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2543031143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6405422 + ... + 6405818.

It is an arithmetic number, because the mean of its divisors is an integer number (61080264).

Almost surely, 2^2543031140 is an apocalyptic number.

2543031140 is a gapful number since it is divisible by the number (20) 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 2543031140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2931852672).

2543031140 is an abundant number, since it is smaller than the sum of its proper divisors (3320674204).

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

2543031140 is a wasteful number, since it uses less digits than its factorization.

2543031140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2543031140 is about 50428.4754875656. The cubic root of 2543031140 is about 1364.9515187153.

Adding to 2543031140 its reverse (411303452), we get a palindrome (2954334592).

The spelling of 2543031140 in words is "two billion, five hundred forty-three million, thirty-one thousand, one hundred forty".