222544045 has 8 divisors (see below), whose sum is σ = 267213024. Its totient is φ = 177928464.

The previous prime is 222544037. The next prime is 222544073. The reversal of 222544045 is 540445222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222544045 - 2³ = 222544037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 3519 + ... + 21388.

It is an arithmetic number, because the mean of its divisors is an integer number (33401628).

Almost surely, 2^222544045 is an apocalyptic number.

It is an amenable number.

222544045 is a deficient number, since it is larger than the sum of its proper divisors (44668979).

222544045 is a wasteful number, since it uses less digits than its factorization.

222544045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26699.

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 222544045 is about 14917.9102088731. The cubic root of 222544045 is about 605.9991186400. Note that the first 3 decimals are identical.

Adding to 222544045 its reverse (540445222), we get a palindrome (762989267).

The spelling of 222544045 in words is "two hundred twenty-two million, five hundred forty-four thousand, forty-five".