451223 has 4 divisors (see below), whose sum is σ = 452568. Its totient is φ = 449880.

The previous prime is 451207. The next prime is 451249. The reversal of 451223 is 322154.

It is a semiprime because it is the product of two primes, 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 451223 - 2⁴ = 451207 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 (451523) 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, 308 + ... + 998.

It is an arithmetic number, because the mean of its divisors is an integer number (113142).

2⁴⁵¹²²³ is an apocalyptic number.

451223 is a deficient number, since it is larger than the sum of its proper divisors (1345).

451223 is an equidigital number, since it uses as much as digits as its factorization.

451223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344.

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

The square root of 451223 is about 671.7313451076. The cubic root of 451223 is about 76.7003024012.

Adding to 451223 its reverse (322154), we get a palindrome (773377).

The spelling of 451223 in words is "four hundred fifty-one thousand, two hundred twenty-three".