229289 has 4 divisors (see below), whose sum is σ = 235524. Its totient is φ = 223056.

The previous prime is 229283. The next prime is 229309. The reversal of 229289 is 982922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 982922 = 2 ⋅491461.

It can be written as a sum of positive squares in 2 ways, for example, as 153664 + 75625 = 392^2 + 275^2 .

It is a cyclic number.

It is not a de Polignac number, because 229289 - 2¹⁶ = 163753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229283) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3062 + ... + 3135.

It is an arithmetic number, because the mean of its divisors is an integer number (58881).

2²²⁹²⁸⁹ is an apocalyptic number.

It is an amenable number.

229289 is a deficient number, since it is larger than the sum of its proper divisors (6235).

229289 is an equidigital number, since it uses as much as digits as its factorization.

229289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6234.

The product of its digits is 5184, while the sum is 32.

The square root of 229289 is about 478.8413098303. The cubic root of 229289 is about 61.2060576116.

The spelling of 229289 in words is "two hundred twenty-nine thousand, two hundred eighty-nine".