224539 has 4 divisors (see below), whose sum is σ = 256624. Its totient is φ = 192456.

The previous prime is 224527. The next prime is 224563. The reversal of 224539 is 935422.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 224539 - 2⁹ = 224027 is a prime.

It is a Duffinian number.

224539 is a lucky number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (224569) 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 3 ways as a sum of consecutive naturals, for example, 16032 + ... + 16045.

It is an arithmetic number, because the mean of its divisors is an integer number (64156).

2²²⁴⁵³⁹ is an apocalyptic number.

224539 is a deficient number, since it is larger than the sum of its proper divisors (32085).

224539 is an equidigital number, since it uses as much as digits as its factorization.

224539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32084.

The product of its digits is 2160, while the sum is 25.

The square root of 224539 is about 473.8554631953. The cubic root of 224539 is about 60.7804523667.

The spelling of 224539 in words is "two hundred twenty-four thousand, five hundred thirty-nine".