173306213 has 8 divisors (see below), whose sum is σ = 179617536. Its totient is φ = 167040000.

The previous prime is 173306207. The next prime is 173306227. The reversal of 173306213 is 312603371.

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

It is a cyclic number.

It is not a de Polignac number, because 173306213 - 2⁶ = 173306149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173306293) 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 7 ways as a sum of consecutive naturals, for example, 3356 + ... + 18917.

It is an arithmetic number, because the mean of its divisors is an integer number (22452192).

Almost surely, 2^173306213 is an apocalyptic number.

It is an amenable number.

173306213 is a deficient number, since it is larger than the sum of its proper divisors (6311323).

173306213 is a wasteful number, since it uses less digits than its factorization.

173306213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22555.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 173306213 is about 13164.5817632008. The cubic root of 173306213 is about 557.5340262233.

Adding to 173306213 its reverse (312603371), we get a palindrome (485909584).

The spelling of 173306213 in words is "one hundred seventy-three million, three hundred six thousand, two hundred thirteen".