254843279 has 2 divisors, whose sum is σ = 254843280. Its totient is φ = 254843278.

The previous prime is 254843269. The next prime is 254843317. The reversal of 254843279 is 972348452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254843279 - 2⁴ = 254843263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254843269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127421639 + 127421640.

It is an arithmetic number, because the mean of its divisors is an integer number (127421640).

Almost surely, 2^254843279 is an apocalyptic number.

254843279 is a deficient number, since it is larger than the sum of its proper divisors (1).

254843279 is an equidigital number, since it uses as much as digits as its factorization.

254843279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 44.

The square root of 254843279 is about 15963.8115436133. The cubic root of 254843279 is about 634.0026329472.

The spelling of 254843279 in words is "two hundred fifty-four million, eight hundred forty-three thousand, two hundred seventy-nine".