254260861 has 2 divisors, whose sum is σ = 254260862. Its totient is φ = 254260860.

The previous prime is 254260843. The next prime is 254260889. The reversal of 254260861 is 168062452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148376761 + 105884100 = 12181^2 + 10290^2 .

It is a cyclic number.

It is not a de Polignac number, because 254260861 - 2⁵ = 254260829 is a prime.

It is a super-2 number, since 2×254260861² = 129297170872922642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254360861) 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 as a sum of consecutive naturals, namely, 127130430 + 127130431.

It is an arithmetic number, because the mean of its divisors is an integer number (127130431).

Almost surely, 2^254260861 is an apocalyptic number.

It is an amenable number.

254260861 is a deficient number, since it is larger than the sum of its proper divisors (1).

254260861 is an equidigital number, since it uses as much as digits as its factorization.

254260861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 254260861 is about 15945.5592877766. The cubic root of 254260861 is about 633.5192820262.

The spelling of 254260861 in words is "two hundred fifty-four million, two hundred sixty thousand, eight hundred sixty-one".