223173 has 12 divisors (see below), whose sum is σ = 326508. Its totient is φ = 146880.

The previous prime is 223151. The next prime is 223207. The reversal of 223173 is 371322.

It can be written as a sum of positive squares in 2 ways, for example, as 49284 + 173889 = 222^2 + 417^2 .

It is not a de Polignac number, because 223173 - 2¹⁰ = 222149 is a prime.

It is a super-3 number, since 3×223173³ = 33346189136036151, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223103) 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 11 ways as a sum of consecutive naturals, for example, 1143 + ... + 1323.

It is an arithmetic number, because the mean of its divisors is an integer number (27209).

2²²³¹⁷³ is an apocalyptic number.

It is an amenable number.

223173 is a deficient number, since it is larger than the sum of its proper divisors (103335).

223173 is a wasteful number, since it uses less digits than its factorization.

223173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 321 counting only the distinct ones).

The product of its digits is 252, while the sum is 18.

The square root of 223173 is about 472.4118965479. The cubic root of 223173 is about 60.6569474159.

Adding to 223173 its reverse (371322), we get a palindrome (594495).

It can be divided in two parts, 2231 and 73, that added together give a square (2304 = 48²).

The spelling of 223173 in words is "two hundred twenty-three thousand, one hundred seventy-three", and thus it is an iban number.