222543045 has 48 divisors (see below), whose sum is σ = 403009152. Its totient is φ = 117806400.

The previous prime is 222543043. The next prime is 222543109. The reversal of 222543045 is 540345222.

It is a happy number.

222543045 is a `hidden beast` number, since 2 + 225 + 430 + 4 + 5 = 666.

It is not a de Polignac number, because 222543045 - 2¹ = 222543043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222543043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182859 + ... + 184071.

It is an arithmetic number, because the mean of its divisors is an integer number (8396024).

Almost surely, 2^222543045 is an apocalyptic number.

It is an amenable number.

222543045 is a deficient number, since it is larger than the sum of its proper divisors (180466107).

222543045 is a wasteful number, since it uses less digits than its factorization.

222543045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384 (or 1372 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 222543045 is about 14917.8766920765. The cubic root of 222543045 is about 605.9982109544.

Adding to 222543045 its reverse (540345222), we get a palindrome (762888267).

The spelling of 222543045 in words is "two hundred twenty-two million, five hundred forty-three thousand, forty-five".