222529 has 4 divisors (see below), whose sum is σ = 223876. Its totient is φ = 221184.

The previous prime is 222527. The next prime is 222533. The reversal of 222529 is 925222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115600 + 106929 = 340^2 + 327^2 .

It is a 3-Lehmer number, since φ(222529) divides (222529-1)³.

It is a cyclic number.

It is not a de Polignac number, because 222529 - 2¹ = 222527 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384 + ... + 769.

It is an arithmetic number, because the mean of its divisors is an integer number (55969).

2²²²⁵²⁹ is an apocalyptic number.

It is an amenable number.

222529 is a deficient number, since it is larger than the sum of its proper divisors (1347).

222529 is a wasteful number, since it uses less digits than its factorization.

222529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346.

The product of its digits is 720, while the sum is 22.

The square root of 222529 is about 471.7297955398. The cubic root of 222529 is about 60.5985462224.

The spelling of 222529 in words is "two hundred twenty-two thousand, five hundred twenty-nine".