224189 has 4 divisors (see below), whose sum is σ = 256224. Its totient is φ = 192156.

The previous prime is 224177. The next prime is 224197. The reversal of 224189 is 981422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224129) 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, 16007 + ... + 16020.

It is an arithmetic number, because the mean of its divisors is an integer number (64056).

2²²⁴¹⁸⁹ is an apocalyptic number.

It is an amenable number.

224189 is a deficient number, since it is larger than the sum of its proper divisors (32035).

224189 is an equidigital number, since it uses as much as digits as its factorization.

224189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32034.

The product of its digits is 1152, while the sum is 26.

The square root of 224189 is about 473.4860082410. The cubic root of 224189 is about 60.7488554488.

The spelling of 224189 in words is "two hundred twenty-four thousand, one hundred eighty-nine".