2543134242 has 64 divisors (see below), whose sum is σ = 5799029760. Its totient is φ = 735979200.

The previous prime is 2543134241. The next prime is 2543134271. The reversal of 2543134242 is 2424313452.

It is not an unprimeable number, because it can be changed into a prime (2543134241) 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, 1609809 + ... + 1611387.

It is an arithmetic number, because the mean of its divisors is an integer number (90609840).

Almost surely, 2^2543134242 is an apocalyptic number.

2543134242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543134242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2899514880).

2543134242 is an abundant number, since it is smaller than the sum of its proper divisors (3255895518).

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

2543134242 is a wasteful number, since it uses less digits than its factorization.

2543134242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679.

The product of its digits is 23040, while the sum is 30.

The square root of 2543134242 is about 50429.4977369396. The cubic root of 2543134242 is about 1364.9699648559.

Adding to 2543134242 its reverse (2424313452), we get a palindrome (4967447694).

The spelling of 2543134242 in words is "two billion, five hundred forty-three million, one hundred thirty-four thousand, two hundred forty-two".