515223 has 24 divisors (see below), whose sum is σ = 823680. Its totient is φ = 308880.

The previous prime is 515191. The next prime is 515227. The reversal of 515223 is 322515.

It is a happy number.

It is not a de Polignac number, because 515223 - 2⁵ = 515191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 515196 and 515205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515227) 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 23 ways as a sum of consecutive naturals, for example, 3868 + ... + 3998.

It is an arithmetic number, because the mean of its divisors is an integer number (34320).

2⁵¹⁵²²³ is an apocalyptic number.

515223 is a deficient number, since it is larger than the sum of its proper divisors (308457).

515223 is a wasteful number, since it uses less digits than its factorization.

515223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 176 counting only the distinct ones).

The product of its digits is 300, while the sum is 18.

The square root of 515223 is about 717.7903593669. The cubic root of 515223 is about 80.1675135785.

Adding to 515223 its reverse (322515), we get a palindrome (837738).

The spelling of 515223 in words is "five hundred fifteen thousand, two hundred twenty-three".