223313249 has 2 divisors, whose sum is σ = 223313250. Its totient is φ = 223313248.

The previous prime is 223313231. The next prime is 223313263. The reversal of 223313249 is 942313322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184960000 + 38353249 = 13600^2 + 6193^2 .

It is a cyclic number.

It is not a de Polignac number, because 223313249 - 2⁸ = 223312993 is a prime.

It is not a weakly prime, because it can be changed into another prime (223313219) 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, 111656624 + 111656625.

It is an arithmetic number, because the mean of its divisors is an integer number (111656625).

Almost surely, 2^223313249 is an apocalyptic number.

It is an amenable number.

223313249 is a deficient number, since it is larger than the sum of its proper divisors (1).

223313249 is an equidigital number, since it uses as much as digits as its factorization.

223313249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 223313249 is about 14943.6691946791. The cubic root of 223313249 is about 606.6965100576.

The spelling of 223313249 in words is "two hundred twenty-three million, three hundred thirteen thousand, two hundred forty-nine".