454221223 has 2 divisors, whose sum is σ = 454221224. Its totient is φ = 454221222.

The previous prime is 454221211. The next prime is 454221233. The reversal of 454221223 is 322122454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 454221223 - 2⁵ = 454221191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454221233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227110611 + 227110612.

It is an arithmetic number, because the mean of its divisors is an integer number (227110612).

Almost surely, 2^454221223 is an apocalyptic number.

454221223 is a deficient number, since it is larger than the sum of its proper divisors (1).

454221223 is an equidigital number, since it uses as much as digits as its factorization.

454221223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 25.

The square root of 454221223 is about 21312.4663753400. The cubic root of 454221223 is about 768.6980996711.

Adding to 454221223 its reverse (322122454), we get a palindrome (776343677).

The spelling of 454221223 in words is "four hundred fifty-four million, two hundred twenty-one thousand, two hundred twenty-three".