222579 has 12 divisors (see below), whose sum is σ = 367536. Its totient is φ = 127152.

The previous prime is 222557. The next prime is 222587. The reversal of 222579 is 975222.

It is a happy number.

It is not a de Polignac number, because 222579 - 2⁸ = 222323 is a prime.

It is a super-3 number, since 3×222579³ = 33080633317831617, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁴ + 2¹⁶ + 5⁴ + 2¹⁷ + 7⁴ + 9⁴ .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (222379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1704 + ... + 1829.

It is an arithmetic number, because the mean of its divisors is an integer number (30628).

2²²²⁵⁷⁹ is an apocalyptic number.

222579 is a deficient number, since it is larger than the sum of its proper divisors (144957).

222579 is a wasteful number, since it uses less digits than its factorization.

222579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3546 (or 3543 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 222579 is about 471.7827890036. The cubic root of 222579 is about 60.6030845079.

It can be divided in two parts, 2225 and 79, that added together give a square (2304 = 48²).

The spelling of 222579 in words is "two hundred twenty-two thousand, five hundred seventy-nine".