192172231 has 4 divisors (see below), whose sum is σ = 192200512. Its totient is φ = 192143952.

The previous prime is 192172219. The next prime is 192172261. The reversal of 192172231 is 132271291.

192172231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 132271291 = 29 ⋅4561079.

It is a cyclic number.

It is not a de Polignac number, because 192172231 - 2¹¹ = 192170183 is a prime.

It is a super-2 number, since 2×192172231² = 73860332735034722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 192172231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192172261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2890 + ... + 19816.

It is an arithmetic number, because the mean of its divisors is an integer number (48050128).

Almost surely, 2^192172231 is an apocalyptic number.

192172231 is a deficient number, since it is larger than the sum of its proper divisors (28281).

192172231 is a wasteful number, since it uses less digits than its factorization.

192172231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28280.

The product of its digits is 1512, while the sum is 28.

The square root of 192172231 is about 13862.6199183271. The cubic root of 192172231 is about 577.0722766286.

The spelling of 192172231 in words is "one hundred ninety-two million, one hundred seventy-two thousand, two hundred thirty-one".