171098 has 4 divisors (see below), whose sum is σ = 256650. Its totient is φ = 85548.

The previous prime is 171091. The next prime is 171103. The reversal of 171098 is 890171.

171098 is nontrivially palindromic in base 3.

171098 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 an emirpimes, since its reverse is a distinct semiprime: 890171 = 17 ⋅52363.

It can be written as a sum of positive squares in only one way, i.e., 170569 + 529 = 413^2 + 23^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (171091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42773 + ... + 42776.

2¹⁷¹⁰⁹⁸ is an apocalyptic number.

171098 is a deficient number, since it is larger than the sum of its proper divisors (85552).

171098 is an equidigital number, since it uses as much as digits as its factorization.

171098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85551.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 171098 is about 413.6399400445. The cubic root of 171098 is about 55.5155922968.

The spelling of 171098 in words is "one hundred seventy-one thousand, ninety-eight".