2142543543 has 32 divisors (see below), whose sum is σ = 3292047360. Its totient is φ = 1214145120.

The previous prime is 2142543527. The next prime is 2142543553. The reversal of 2142543543 is 3453452412.

It is not a de Polignac number, because 2142543543 - 2⁴ = 2142543527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142543553) 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, 2206048 + ... + 2207018.

It is an arithmetic number, because the mean of its divisors is an integer number (102876480).

Almost surely, 2^2142543543 is an apocalyptic number.

2142543543 is a deficient number, since it is larger than the sum of its proper divisors (1149503817).

2142543543 is a wasteful number, since it uses less digits than its factorization.

2142543543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747.

The product of its digits is 57600, while the sum is 33.

The square root of 2142543543 is about 46287.6175990945. The cubic root of 2142543543 is about 1289.1690947483.

Adding to 2142543543 its reverse (3453452412), we get a palindrome (5595995955).

The spelling of 2142543543 in words is "two billion, one hundred forty-two million, five hundred forty-three thousand, five hundred forty-three".