173213 has 8 divisors (see below), whose sum is σ = 191808. Its totient is φ = 155584.

The previous prime is 173209. The next prime is 173219. The reversal of 173213 is 312371.

173213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 173213 - 2² = 173209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 173191 and 173200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173219) 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, 170 + ... + 612.

It is an arithmetic number, because the mean of its divisors is an integer number (23976).

2¹⁷³²¹³ is an apocalyptic number.

It is an amenable number.

173213 is a deficient number, since it is larger than the sum of its proper divisors (18595).

173213 is a wasteful number, since it uses less digits than its factorization.

173213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483.

The product of its digits is 126, while the sum is 17.

The square root of 173213 is about 416.1886591439. The cubic root of 173213 is about 55.7434051467.

Adding to 173213 its reverse (312371), we get a palindrome (485584).

The spelling of 173213 in words is "one hundred seventy-three thousand, two hundred thirteen".