254042443 has 2 divisors, whose sum is σ = 254042444. Its totient is φ = 254042442.

The previous prime is 254042431. The next prime is 254042461. The reversal of 254042443 is 344240452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254042443 - 2¹³ = 254034251 is a prime.

It is not a weakly prime, because it can be changed into another prime (254042423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127021221 + 127021222.

It is an arithmetic number, because the mean of its divisors is an integer number (127021222).

Almost surely, 2^254042443 is an apocalyptic number.

254042443 is a deficient number, since it is larger than the sum of its proper divisors (1).

254042443 is an equidigital number, since it uses as much as digits as its factorization.

254042443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 254042443 is about 15938.7089502255. The cubic root of 254042443 is about 633.3378257915.

Adding to 254042443 its reverse (344240452), we get a palindrome (598282895).

The spelling of 254042443 in words is "two hundred fifty-four million, forty-two thousand, four hundred forty-three".