224534509 has 2 divisors, whose sum is σ = 224534510. Its totient is φ = 224534508.

The previous prime is 224534467. The next prime is 224534539. The reversal of 224534509 is 905435422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220522500 + 4012009 = 14850^2 + 2003^2 .

It is a cyclic number.

It is not a de Polignac number, because 224534509 - 2¹³ = 224526317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224534539) 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, 112267254 + 112267255.

It is an arithmetic number, because the mean of its divisors is an integer number (112267255).

Almost surely, 2^224534509 is an apocalyptic number.

It is an amenable number.

224534509 is a deficient number, since it is larger than the sum of its proper divisors (1).

224534509 is an equidigital number, since it uses as much as digits as its factorization.

224534509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 224534509 is about 14984.4755997666. The cubic root of 224534509 is about 607.8004714114.

It can be divided in two parts, 22453 and 4509, that added together give a palindrome (26962).

The spelling of 224534509 in words is "two hundred twenty-four million, five hundred thirty-four thousand, five hundred nine".