171106231 has 4 divisors (see below), whose sum is σ = 171772272. Its totient is φ = 170440192.

The previous prime is 171106193. The next prime is 171106253. The reversal of 171106231 is 132601171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132601171 = 19 ⋅6979009.

It is a cyclic number.

It is not a de Polignac number, because 171106231 - 2⁹ = 171105719 is a prime.

It is a super-2 number, since 2×171106231² = 58554684574050722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171100231) 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, 332635 + ... + 333148.

It is an arithmetic number, because the mean of its divisors is an integer number (42943068).

Almost surely, 2^171106231 is an apocalyptic number.

171106231 is a deficient number, since it is larger than the sum of its proper divisors (666041).

171106231 is an equidigital number, since it uses as much as digits as its factorization.

171106231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666040.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 171106231 is about 13080.7580437832. The cubic root of 171106231 is about 555.1648251083.

The spelling of 171106231 in words is "one hundred seventy-one million, one hundred six thousand, two hundred thirty-one".