223004209 has 2 divisors, whose sum is σ = 223004210. Its totient is φ = 223004208.

The previous prime is 223004191. The next prime is 223004323. The reversal of 223004209 is 902400322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208715809 + 14288400 = 14447^2 + 3780^2 .

It is a cyclic number.

It is not a de Polignac number, because 223004209 - 2¹⁷ = 222873137 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223004209.

It is not a weakly prime, because it can be changed into another prime (223004009) 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, 111502104 + 111502105.

It is an arithmetic number, because the mean of its divisors is an integer number (111502105).

Almost surely, 2^223004209 is an apocalyptic number.

It is an amenable number.

223004209 is a deficient number, since it is larger than the sum of its proper divisors (1).

223004209 is an equidigital number, since it uses as much as digits as its factorization.

223004209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 223004209 is about 14933.3254501467. The cubic root of 223004209 is about 606.4165146600.

The spelling of 223004209 in words is "two hundred twenty-three million, four thousand, two hundred nine".