254239 has 4 divisors (see below), whose sum is σ = 267640. Its totient is φ = 240840.

The previous prime is 254213. The next prime is 254249. The reversal of 254239 is 932452.

254239 = T₁₅₄ + T₁₅₅ + ... + T₁₇₂.

It is a happy number.

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 254239 - 2⁵ = 254207 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 (254209) 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, 6672 + ... + 6709.

It is an arithmetic number, because the mean of its divisors is an integer number (66910).

2²⁵⁴²³⁹ is an apocalyptic number.

254239 is a deficient number, since it is larger than the sum of its proper divisors (13401).

254239 is a wasteful number, since it uses less digits than its factorization.

254239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13400.

The product of its digits is 2160, while the sum is 25.

The square root of 254239 is about 504.2211816257. The cubic root of 254239 is about 63.3501125133.

It can be divided in two parts, 254 and 239, that multiplied together give a palindrome (60706).

The spelling of 254239 in words is "two hundred fifty-four thousand, two hundred thirty-nine".