173213006 has 16 divisors (see below), whose sum is σ = 275314560. Its totient is φ = 81502200.

The previous prime is 173213003. The next prime is 173213039. The reversal of 173213006 is 600312371.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173213003) 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, 9356 + ... + 20831.

It is an arithmetic number, because the mean of its divisors is an integer number (17207160).

Almost surely, 2^173213006 is an apocalyptic number.

173213006 is a deficient number, since it is larger than the sum of its proper divisors (102101554).

173213006 is a wasteful number, since it uses less digits than its factorization.

173213006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30359.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 173213006 is about 13161.0412202075. The cubic root of 173213006 is about 557.4340579033.

Adding to 173213006 its reverse (600312371), we get a palindrome (773525377).

The spelling of 173213006 in words is "one hundred seventy-three million, two hundred thirteen thousand, six".