171149 has 4 divisors (see below), whose sum is σ = 186720. Its totient is φ = 155580.

The previous prime is 171131. The next prime is 171161. The reversal of 171149 is 941171.

171149 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 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 171149 - 2¹⁶ = 105613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 171149.

It is not an unprimeable number, because it can be changed into a prime (171169) 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, 7769 + ... + 7790.

It is an arithmetic number, because the mean of its divisors is an integer number (46680).

2¹⁷¹¹⁴⁹ is an apocalyptic number.

It is an amenable number.

171149 is a deficient number, since it is larger than the sum of its proper divisors (15571).

171149 is a wasteful number, since it uses less digits than its factorization.

171149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15570.

The product of its digits is 252, while the sum is 23.

The square root of 171149 is about 413.7015832699. The cubic root of 171149 is about 55.5211076816.

The spelling of 171149 in words is "one hundred seventy-one thousand, one hundred forty-nine".