254321 has 4 divisors (see below), whose sum is σ = 255552. Its totient is φ = 253092.

The previous prime is 254299. The next prime is 254329. The reversal of 254321 is 123452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 254321 - 2⁶ = 254257 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 254321.

It is not an unprimeable number, because it can be changed into a prime (254329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221 + ... + 746.

It is an arithmetic number, because the mean of its divisors is an integer number (63888).

2²⁵⁴³²¹ is an apocalyptic number.

It is an amenable number.

254321 is a deficient number, since it is larger than the sum of its proper divisors (1231).

254321 is an equidigital number, since it uses as much as digits as its factorization.

254321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230.

The product of its digits is 240, while the sum is 17.

The square root of 254321 is about 504.3024885919. The cubic root of 254321 is about 63.3569225763.

Adding to 254321 its reverse (123452), we get a palindrome (377773).

It can be divided in two parts, 254 and 321, that added together give a palindrome (575).

The spelling of 254321 in words is "two hundred fifty-four thousand, three hundred twenty-one".