222545443 has 2 divisors, whose sum is σ = 222545444. Its totient is φ = 222545442.

The previous prime is 222545441. The next prime is 222545483. The reversal of 222545443 is 344545222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222545443 - 2¹ = 222545441 is a prime.

Together with 222545441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (222545441) 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, 111272721 + 111272722.

It is an arithmetic number, because the mean of its divisors is an integer number (111272722).

Almost surely, 2^222545443 is an apocalyptic number.

222545443 is a deficient number, since it is larger than the sum of its proper divisors (1).

222545443 is an equidigital number, since it uses as much as digits as its factorization.

222545443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38400, while the sum is 31.

The square root of 222545443 is about 14917.9570652285. The cubic root of 222545443 is about 606.0003875798. Note that the first 3 decimals are identical.

The spelling of 222545443 in words is "two hundred twenty-two million, five hundred forty-five thousand, four hundred forty-three".