223013209 has 2 divisors, whose sum is σ = 223013210. Its totient is φ = 223013208.

The previous prime is 223013183. The next prime is 223013233. The reversal of 223013209 is 902310322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217267600 + 5745609 = 14740^2 + 2397^2 .

It is a cyclic number.

It is not a de Polignac number, because 223013209 - 2⁷ = 223013081 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 223013209.

It is not a weakly prime, because it can be changed into another prime (223013269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111506604 + 111506605.

It is an arithmetic number, because the mean of its divisors is an integer number (111506605).

Almost surely, 2^223013209 is an apocalyptic number.

It is an amenable number.

223013209 is a deficient number, since it is larger than the sum of its proper divisors (1).

223013209 is an equidigital number, since it uses as much as digits as its factorization.

223013209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 223013209 is about 14933.6267865512. The cubic root of 223013209 is about 606.4246724659.

The spelling of 223013209 in words is "two hundred twenty-three million, thirteen thousand, two hundred nine".