453221 has 4 divisors (see below), whose sum is σ = 462912. Its totient is φ = 443532.

The previous prime is 453217. The next prime is 453227. The reversal of 453221 is 122354.

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.

It is a cyclic number.

It is not a de Polignac number, because 453221 - 2² = 453217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 453221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453227) 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, 4775 + ... + 4868.

It is an arithmetic number, because the mean of its divisors is an integer number (115728).

2⁴⁵³²²¹ is an apocalyptic number.

It is an amenable number.

453221 is a deficient number, since it is larger than the sum of its proper divisors (9691).

453221 is an equidigital number, since it uses as much as digits as its factorization.

453221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9690.

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

The square root of 453221 is about 673.2169041253. The cubic root of 453221 is about 76.8133444875.

Adding to 453221 its reverse (122354), we get a palindrome (575575).

The spelling of 453221 in words is "four hundred fifty-three thousand, two hundred twenty-one".