581223 has 4 divisors (see below), whose sum is σ = 774968. Its totient is φ = 387480.

The previous prime is 581201. The next prime is 581227. The reversal of 581223 is 322185.

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

It is not a de Polignac number, because 581223 - 2⁹ = 580711 is a prime.

It is a d-powerful number, because it can be written as 5⁴ + 8⁵ + 2² + 1 + 2¹⁴ + 3¹² .

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 581223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581227) 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, 96868 + ... + 96873.

It is an arithmetic number, because the mean of its divisors is an integer number (193742).

2⁵⁸¹²²³ is an apocalyptic number.

581223 is a deficient number, since it is larger than the sum of its proper divisors (193745).

581223 is a wasteful number, since it uses less digits than its factorization.

581223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193744.

The product of its digits is 480, while the sum is 21.

The square root of 581223 is about 762.3798265956. The cubic root of 581223 is about 83.4540845009.

The spelling of 581223 in words is "five hundred eighty-one thousand, two hundred twenty-three".