222543345 has 64 divisors (see below), whose sum is σ = 392670720. Its totient is φ = 107163648.

The previous prime is 222543341. The next prime is 222543353. The reversal of 222543345 is 543345222.

It is not a de Polignac number, because 222543345 - 2² = 222543341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222543341) 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 in 63 ways as a sum of consecutive naturals, for example, 971691 + ... + 971919.

It is an arithmetic number, because the mean of its divisors is an integer number (6135480).

Almost surely, 2^222543345 is an apocalyptic number.

It is an amenable number.

222543345 is a deficient number, since it is larger than the sum of its proper divisors (170127375).

222543345 is a wasteful number, since it uses less digits than its factorization.

222543345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394.

The product of its digits is 28800, while the sum is 30.

The square root of 222543345 is about 14917.8867471234. The cubic root of 222543345 is about 605.9984832604.

Adding to 222543345 its reverse (543345222), we get a palindrome (765888567).

The spelling of 222543345 in words is "two hundred twenty-two million, five hundred forty-three thousand, three hundred forty-five".