168572193 has 12 divisors (see below), whose sum is σ = 226370928. Its totient is φ = 111583120.

The previous prime is 168572191. The next prime is 168572233. The reversal of 168572193 is 391275861.

It is not a de Polignac number, because 168572193 - 2¹ = 168572191 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (168572191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65338 + ... + 67868.

It is an arithmetic number, because the mean of its divisors is an integer number (18864244).

Almost surely, 2^168572193 is an apocalyptic number.

It is an amenable number.

168572193 is a deficient number, since it is larger than the sum of its proper divisors (57798735).

168572193 is an equidigital number, since it uses as much as digits as its factorization.

168572193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832 (or 2683 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 168572193 is about 12983.5354584181. The cubic root of 168572193 is about 552.4105687097.

The spelling of 168572193 in words is "one hundred sixty-eight million, five hundred seventy-two thousand, one hundred ninety-three".