171117 has 6 divisors (see below), whose sum is σ = 247182. Its totient is φ = 114072.

The previous prime is 171103. The next prime is 171131. The reversal of 171117 is 711171.

It is an interprime number because it is at equal distance from previous prime (171103) and next prime (171131).

It can be written as a sum of positive squares in only one way, i.e., 86436 + 84681 = 294^2 + 291^2 .

It is not a de Polignac number, because 171117 - 2⁶ = 171053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 171117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9498 + ... + 9515.

It is an arithmetic number, because the mean of its divisors is an integer number (41197).

2¹⁷¹¹¹⁷ is an apocalyptic number.

It is an amenable number.

171117 is a deficient number, since it is larger than the sum of its proper divisors (76065).

171117 is a wasteful number, since it uses less digits than its factorization.

171117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19019 (or 19016 counting only the distinct ones).

The product of its digits is 49, while the sum is 18.

The square root of 171117 is about 413.6629062413. The cubic root of 171117 is about 55.5176471761.

Adding to 171117 its reverse (711171), we get a palindrome (882288).

It can be divided in two parts, 1711 and 17, that added together give a cube (1728 = 12³).

The spelling of 171117 in words is "one hundred seventy-one thousand, one hundred seventeen", and thus it is an iban number.