254287 has 4 divisors (see below), whose sum is σ = 277416. Its totient is φ = 231160.

The previous prime is 254281. The next prime is 254291. The reversal of 254287 is 782452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 254287 - 2³ = 254279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254281) by changing a digit.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11548 + ... + 11569.

It is an arithmetic number, because the mean of its divisors is an integer number (69354).

2²⁵⁴²⁸⁷ is an apocalyptic number.

254287 is a deficient number, since it is larger than the sum of its proper divisors (23129).

254287 is a wasteful number, since it uses less digits than its factorization.

254287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23128.

The product of its digits is 4480, while the sum is 28.

The square root of 254287 is about 504.2687775383. The cubic root of 254287 is about 63.3540990693.

It can be divided in two parts, 2 and 54287, that added together give a square (54289 = 233²).

The spelling of 254287 in words is "two hundred fifty-four thousand, two hundred eighty-seven".