171320 has 16 divisors (see below), whose sum is σ = 385560. Its totient is φ = 68512.

The previous prime is 171317. The next prime is 171329. The reversal of 171320 is 23171.

171320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 171295 and 171304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171329) 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, 2102 + ... + 2181.

2¹⁷¹³²⁰ is an apocalyptic number.

171320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171320 is an abundant number, since it is smaller than the sum of its proper divisors (214240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171320 is a wasteful number, since it uses less digits than its factorization.

171320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294 (or 4290 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 171320 is about 413.9082023831. The cubic root of 171320 is about 55.5395924507.

Adding to 171320 its reverse (23171), we get a palindrome (194491).

The spelling of 171320 in words is "one hundred seventy-one thousand, three hundred twenty", and thus it is an iban number.