254879143 has 2 divisors, whose sum is σ = 254879144. Its totient is φ = 254879142.

The previous prime is 254879101. The next prime is 254879153. The reversal of 254879143 is 341978452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254879143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254879143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254879153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127439571 + 127439572.

It is an arithmetic number, because the mean of its divisors is an integer number (127439572).

Almost surely, 2^254879143 is an apocalyptic number.

254879143 is a deficient number, since it is larger than the sum of its proper divisors (1).

254879143 is an equidigital number, since it uses as much as digits as its factorization.

254879143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 43.

The square root of 254879143 is about 15964.9347947306. The cubic root of 254879143 is about 634.0323725372.

The spelling of 254879143 in words is "two hundred fifty-four million, eight hundred seventy-nine thousand, one hundred forty-three".