206313173 has 8 divisors (see below), whose sum is σ = 238308480. Its totient is φ = 176524480.

The previous prime is 206313169. The next prime is 206313179. The reversal of 206313173 is 371313602.

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

It is not a de Polignac number, because 206313173 - 2² = 206313169 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 (206313179) 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, 551453 + ... + 551826.

It is an arithmetic number, because the mean of its divisors is an integer number (29788560).

Almost surely, 2^206313173 is an apocalyptic number.

It is an amenable number.

206313173 is a deficient number, since it is larger than the sum of its proper divisors (31995307).

206313173 is a wasteful number, since it uses less digits than its factorization.

206313173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103307.

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

The square root of 206313173 is about 14363.6058495073. The cubic root of 206313173 is about 590.8931917996.

Adding to 206313173 its reverse (371313602), we get a palindrome (577626775).

The spelling of 206313173 in words is "two hundred six million, three hundred thirteen thousand, one hundred seventy-three".