254221 has 8 divisors (see below), whose sum is σ = 281088. Its totient is φ = 229900.

The previous prime is 254213. The next prime is 254249. The reversal of 254221 is 122452.

254221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 254221 - 2³ = 254213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254195 and 254204.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236 + ... + 1426.

It is an arithmetic number, because the mean of its divisors is an integer number (35136).

2²⁵⁴²²¹ is an apocalyptic number.

It is an amenable number.

254221 is a deficient number, since it is larger than the sum of its proper divisors (26867).

254221 is an equidigital number, since it uses as much as digits as its factorization.

254221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 202 counting only the distinct ones).

The product of its digits is 160, while the sum is 16.

The square root of 254221 is about 504.2033320001. The cubic root of 254221 is about 63.3486174254.

Adding to 254221 its reverse (122452), we get a palindrome (376673).

Subtracting from 254221 its reverse (122452), we obtain a square (131769 = 363²).

The spelling of 254221 in words is "two hundred fifty-four thousand, two hundred twenty-one".