168020173 has 8 divisors (see below), whose sum is σ = 181177920. Its totient is φ = 155293920.

The previous prime is 168020161. The next prime is 168020183. The reversal of 168020173 is 371020861.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168020173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168020143) 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, 107065 + ... + 108622.

It is an arithmetic number, because the mean of its divisors is an integer number (22647240).

Almost surely, 2^168020173 is an apocalyptic number.

It is an amenable number.

168020173 is a deficient number, since it is larger than the sum of its proper divisors (13157747).

168020173 is a wasteful number, since it uses less digits than its factorization.

168020173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215747.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 168020173 is about 12962.2595638261. The cubic root of 168020173 is about 551.8069200182.

The spelling of 168020173 in words is "one hundred sixty-eight million, twenty thousand, one hundred seventy-three".