171112193 has 4 divisors (see below), whose sum is σ = 195556800. Its totient is φ = 146667588.

The previous prime is 171112189. The next prime is 171112199. The reversal of 171112193 is 391211171.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 171112193 - 2² = 171112189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (171112199) 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 3 ways as a sum of consecutive naturals, for example, 12222293 + ... + 12222306.

It is an arithmetic number, because the mean of its divisors is an integer number (48889200).

Almost surely, 2^171112193 is an apocalyptic number.

It is an amenable number.

171112193 is a deficient number, since it is larger than the sum of its proper divisors (24444607).

171112193 is an equidigital number, since it uses as much as digits as its factorization.

171112193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24444606.

The product of its digits is 378, while the sum is 26.

The square root of 171112193 is about 13080.9859337895. The cubic root of 171112193 is about 555.1712730602.

The spelling of 171112193 in words is "one hundred seventy-one million, one hundred twelve thousand, one hundred ninety-three".