170117 has 4 divisors (see below), whose sum is σ = 170976. Its totient is φ = 169260.

The previous prime is 170111. The next prime is 170123. The reversal of 170117 is 711071.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 711071 = 67 ⋅10613.

It is an interprime number because it is at equal distance from previous prime (170111) and next prime (170123).

It is a cyclic number.

It is not a de Polignac number, because 170117 - 2⁴ = 170101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 170095 and 170104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 584.

It is an arithmetic number, because the mean of its divisors is an integer number (42744).

2¹⁷⁰¹¹⁷ is an apocalyptic number.

It is an amenable number.

170117 is a deficient number, since it is larger than the sum of its proper divisors (859).

170117 is an equidigital number, since it uses as much as digits as its factorization.

170117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858.

The product of its (nonzero) digits is 49, while the sum is 17.

The square root of 170117 is about 412.4524214985. The cubic root of 170117 is about 55.4092882809.

Adding to 170117 its reverse (711071), we get a palindrome (881188).

The spelling of 170117 in words is "one hundred seventy thousand, one hundred seventeen", and thus it is an iban number.