224541209 has 2 divisors, whose sum is σ = 224541210. Its totient is φ = 224541208.

The previous prime is 224541193. The next prime is 224541223. The reversal of 224541209 is 902145422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200137609 + 24403600 = 14147^2 + 4940^2 .

It is a cyclic number.

It is not a de Polignac number, because 224541209 - 2⁴ = 224541193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (224541269) 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, 112270604 + 112270605.

It is an arithmetic number, because the mean of its divisors is an integer number (112270605).

Almost surely, 2^224541209 is an apocalyptic number.

It is an amenable number.

224541209 is a deficient number, since it is larger than the sum of its proper divisors (1).

224541209 is an equidigital number, since it uses as much as digits as its factorization.

224541209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 224541209 is about 14984.6991628127. The cubic root of 224541209 is about 607.8065168409.

The spelling of 224541209 in words is "two hundred twenty-four million, five hundred forty-one thousand, two hundred nine".