254641543 has 4 divisors (see below), whose sum is σ = 274229368. Its totient is φ = 235053720.

The previous prime is 254641537. The next prime is 254641559. The reversal of 254641543 is 345146452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254641543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254641499 and 254641508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254641043) 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, 9793893 + ... + 9793918.

It is an arithmetic number, because the mean of its divisors is an integer number (68557342).

Almost surely, 2^254641543 is an apocalyptic number.

254641543 is a deficient number, since it is larger than the sum of its proper divisors (19587825).

254641543 is a wasteful number, since it uses less digits than its factorization.

254641543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19587824.

The product of its digits is 57600, while the sum is 34.

The square root of 254641543 is about 15957.4917515254. The cubic root of 254641543 is about 633.8352949141.

Adding to 254641543 its reverse (345146452), we get a palindrome (599787995).

The spelling of 254641543 in words is "two hundred fifty-four million, six hundred forty-one thousand, five hundred forty-three".