1173171 has 4 divisors (see below), whose sum is σ = 1564232. Its totient is φ = 782112.

The previous prime is 1173163. The next prime is 1173173. The reversal of 1173171 is 1713711.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1173171 - 2³ = 1173163 is a prime.

It is a D-number.

It is a Duffinian number.

1173171 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1173173) 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, 195526 + ... + 195531.

It is an arithmetic number, because the mean of its divisors is an integer number (391058).

2^1173171 is an apocalyptic number.

1173171 is a deficient number, since it is larger than the sum of its proper divisors (391061).

1173171 is an equidigital number, since it uses as much as digits as its factorization.

1173171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391060.

The product of its digits is 147, while the sum is 21.

The square root of 1173171 is about 1083.1301860811. The cubic root of 1173171 is about 105.4679342214.

Adding to 1173171 its reverse (1713711), we get a palindrome (2886882).

The spelling of 1173171 in words is "one million, one hundred seventy-three thousand, one hundred seventy-one".