254869 has 2 divisors, whose sum is σ = 254870. Its totient is φ = 254868.

The previous prime is 254857. The next prime is 254873. The reversal of 254869 is 968452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140625 + 114244 = 375^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 254869 - 2⁷ = 254741 is a prime.

It is a super-2 number, since 2×254869² = 129916414322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127434 + 127435.

It is an arithmetic number, because the mean of its divisors is an integer number (127435).

2²⁵⁴⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

254869 is a deficient number, since it is larger than the sum of its proper divisors (1).

254869 is an equidigital number, since it uses as much as digits as its factorization.

254869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 254869 is about 504.8455209269. The cubic root of 254869 is about 63.4023961916.

The spelling of 254869 in words is "two hundred fifty-four thousand, eight hundred sixty-nine".