192128161 has 8 divisors (see below), whose sum is σ = 204126120. Its totient is φ = 180488448.

The previous prime is 192128149. The next prime is 192128179. The reversal of 192128161 is 161821291.

It is a happy number.

192128161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 38987536 + 153140625 = 6244^2 + 12375^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 192128161 - 2⁵ = 192128129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192128141) 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, 88456 + ... + 90601.

It is an arithmetic number, because the mean of its divisors is an integer number (25515765).

Almost surely, 2^192128161 is an apocalyptic number.

It is an amenable number.

192128161 is a deficient number, since it is larger than the sum of its proper divisors (11997959).

192128161 is a wasteful number, since it uses less digits than its factorization.

192128161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179123.

The product of its digits is 1728, while the sum is 31.

The square root of 192128161 is about 13861.0303008110. The cubic root of 192128161 is about 577.0281607863.

The spelling of 192128161 in words is "one hundred ninety-two million, one hundred twenty-eight thousand, one hundred sixty-one".