223807249 has 2 divisors, whose sum is σ = 223807250. Its totient is φ = 223807248.

The previous prime is 223807229. The next prime is 223807253. The reversal of 223807249 is 942708322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131262849 + 92544400 = 11457^2 + 9620^2 .

It is a cyclic number.

It is not a de Polignac number, because 223807249 - 2⁷ = 223807121 is a prime.

It is not a weakly prime, because it can be changed into another prime (223807219) 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, 111903624 + 111903625.

It is an arithmetic number, because the mean of its divisors is an integer number (111903625).

Almost surely, 2^223807249 is an apocalyptic number.

It is an amenable number.

223807249 is a deficient number, since it is larger than the sum of its proper divisors (1).

223807249 is an equidigital number, since it uses as much as digits as its factorization.

223807249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 223807249 is about 14960.1888022845. The cubic root of 223807249 is about 607.1435463021.

The spelling of 223807249 in words is "two hundred twenty-three million, eight hundred seven thousand, two hundred forty-nine".