453134221 has 2 divisors, whose sum is σ = 453134222. Its totient is φ = 453134220.

The previous prime is 453134207. The next prime is 453134243. The reversal of 453134221 is 122431354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 445632100 + 7502121 = 21110^2 + 2739^2 .

It is a cyclic number.

It is not a de Polignac number, because 453134221 - 2⁵ = 453134189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (453134281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226567110 + 226567111.

It is an arithmetic number, because the mean of its divisors is an integer number (226567111).

Almost surely, 2^453134221 is an apocalyptic number.

It is an amenable number.

453134221 is a deficient number, since it is larger than the sum of its proper divisors (1).

453134221 is an equidigital number, since it uses as much as digits as its factorization.

453134221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 453134221 is about 21286.9495466119. The cubic root of 453134221 is about 768.0844164704.

Adding to 453134221 its reverse (122431354), we get a palindrome (575565575).

The spelling of 453134221 in words is "four hundred fifty-three million, one hundred thirty-four thousand, two hundred twenty-one".