223539 has 8 divisors (see below), whose sum is σ = 300240. Its totient is φ = 147936.

The previous prime is 223529. The next prime is 223543. The reversal of 223539 is 935322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 223539 - 2⁵ = 223507 is a prime.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (223529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669 + ... + 945.

It is an arithmetic number, because the mean of its divisors is an integer number (37530).

2²²³⁵³⁹ is an apocalyptic number.

223539 is a deficient number, since it is larger than the sum of its proper divisors (76701).

223539 is a wasteful number, since it uses less digits than its factorization.

223539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549.

The product of its digits is 1620, while the sum is 24.

The square root of 223539 is about 472.7991116743. The cubic root of 223539 is about 60.6900881000.

The spelling of 223539 in words is "two hundred twenty-three thousand, five hundred thirty-nine".