222545 has 8 divisors (see below), whose sum is σ = 273024. Its totient is φ = 174064.

The previous prime is 222533. The next prime is 222553. The reversal of 222545 is 545222.

222545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 222545 - 2⁸ = 222289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239 + ... + 708.

It is an arithmetic number, because the mean of its divisors is an integer number (34128).

2²²²⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

222545 is a deficient number, since it is larger than the sum of its proper divisors (50479).

222545 is an equidigital number, since it uses as much as digits as its factorization.

222545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999.

The product of its digits is 800, while the sum is 20.

The square root of 222545 is about 471.7467540959. The cubic root of 222545 is about 60.5999985477.

Adding to 222545 its reverse (545222), we get a palindrome (767767).

It can be divided in two parts, 222 and 545, that added together give a palindrome (767).

The spelling of 222545 in words is "two hundred twenty-two thousand, five hundred forty-five".