254540343 has 4 divisors (see below), whose sum is σ = 339387128. Its totient is φ = 169693560.

The previous prime is 254540339. The next prime is 254540347. The reversal of 254540343 is 343045452.

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

It is an interprime number because it is at equal distance from previous prime (254540339) and next prime (254540347).

It is not a de Polignac number, because 254540343 - 2² = 254540339 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 254540343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254540347) 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, 42423388 + ... + 42423393.

It is an arithmetic number, because the mean of its divisors is an integer number (84846782).

Almost surely, 2^254540343 is an apocalyptic number.

254540343 is a deficient number, since it is larger than the sum of its proper divisors (84846785).

254540343 is an equidigital number, since it uses as much as digits as its factorization.

254540343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84846784.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 254540343 is about 15954.3205120118. The cubic root of 254540343 is about 633.7513172169.

Adding to 254540343 its reverse (343045452), we get a palindrome (597585795).

The spelling of 254540343 in words is "two hundred fifty-four million, five hundred forty thousand, three hundred forty-three".