254771281 has 2 divisors, whose sum is σ = 254771282. Its totient is φ = 254771280.

The previous prime is 254771249. The next prime is 254771303. The reversal of 254771281 is 182177452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240746256 + 14025025 = 15516^2 + 3745^2 .

It is a cyclic number.

It is not a de Polignac number, because 254771281 - 2⁵ = 254771249 is a prime.

It is a super-2 number, since 2×254771281² = 129816811244761922, which contains 22 as substring.

It is equal to p_13925971 and since 254771281 and 13925971 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254771281.

It is not a weakly prime, because it can be changed into another prime (254771081) 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, 127385640 + 127385641.

It is an arithmetic number, because the mean of its divisors is an integer number (127385641).

Almost surely, 2^254771281 is an apocalyptic number.

It is an amenable number.

254771281 is a deficient number, since it is larger than the sum of its proper divisors (1).

254771281 is an equidigital number, since it uses as much as digits as its factorization.

254771281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31360, while the sum is 37.

The square root of 254771281 is about 15961.5563464219. The cubic root of 254771281 is about 633.9429214504.

The spelling of 254771281 in words is "two hundred fifty-four million, seven hundred seventy-one thousand, two hundred eighty-one".