222544313 has 2 divisors, whose sum is σ = 222544314. Its totient is φ = 222544312.

The previous prime is 222544291. The next prime is 222544339. The reversal of 222544313 is 313445222.

222544313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (222544339) can be obtained adding 222544313 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198612649 + 23931664 = 14093^2 + 4892^2 .

It is a cyclic number.

It is not a de Polignac number, because 222544313 - 2⁶ = 222544249 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 (222544363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111272156 + 111272157.

It is an arithmetic number, because the mean of its divisors is an integer number (111272157).

Almost surely, 2^222544313 is an apocalyptic number.

It is an amenable number.

222544313 is a deficient number, since it is larger than the sum of its proper divisors (1).

222544313 is an equidigital number, since it uses as much as digits as its factorization.

222544313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 26.

The square root of 222544313 is about 14917.9191913618. The cubic root of 222544313 is about 605.9993618992. Note that the first 3 decimals are identical.

Adding to 222544313 its reverse (313445222), we get a palindrome (535989535).

Subtracting 222544313 from its reverse (313445222), we obtain a palindrome (90900909).

The spelling of 222544313 in words is "two hundred twenty-two million, five hundred forty-four thousand, three hundred thirteen".