254542143 has 4 divisors (see below), whose sum is σ = 339389528. Its totient is φ = 169694760.

The previous prime is 254542133. The next prime is 254542201. The reversal of 254542143 is 341245452.

254542143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 254542143 - 2⁹ = 254541631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254542143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254542133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42423688 + ... + 42423693.

It is an arithmetic number, because the mean of its divisors is an integer number (84847382).

Almost surely, 2^254542143 is an apocalyptic number.

254542143 is a deficient number, since it is larger than the sum of its proper divisors (84847385).

254542143 is an equidigital number, since it uses as much as digits as its factorization.

254542143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84847384.

The product of its digits is 19200, while the sum is 30.

The square root of 254542143 is about 15954.3769229638. The cubic root of 254542143 is about 633.7528110858.

Adding to 254542143 its reverse (341245452), we get a palindrome (595787595).

The spelling of 254542143 in words is "two hundred fifty-four million, five hundred forty-two thousand, one hundred forty-three".