2543561142 has 8 divisors (see below), whose sum is σ = 5087122296. Its totient is φ = 847853712.

The previous prime is 2543561117. The next prime is 2543561143. The reversal of 2543561142 is 2411653452.

It is a sphenic number, since it is the product of 3 distinct primes.

2543561142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543561143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211963423 + ... + 211963434.

It is an arithmetic number, because the mean of its divisors is an integer number (635890287).

Almost surely, 2^2543561142 is an apocalyptic number.

2543561142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2543561142 is a wasteful number, since it uses less digits than its factorization.

2543561142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423926862.

The product of its digits is 28800, while the sum is 33.

The square root of 2543561142 is about 50433.7302011263. The cubic root of 2543561142 is about 1365.0463368993.

The spelling of 2543561142 in words is "two billion, five hundred forty-three million, five hundred sixty-one thousand, one hundred forty-two".