171073 has 4 divisors (see below), whose sum is σ = 195520. Its totient is φ = 146628.

The previous prime is 171053. The next prime is 171077. The reversal of 171073 is 370171.

171073 = T₁₁₇ + T₁₁₈ + ... + T₁₃₇.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 370171 = 31 ⋅11941.

It is a cyclic number.

It is not a de Polignac number, because 171073 - 2¹³ = 162881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 171073.

It is not an unprimeable number, because it can be changed into a prime (171077) 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, 12213 + ... + 12226.

It is an arithmetic number, because the mean of its divisors is an integer number (48880).

2¹⁷¹⁰⁷³ is an apocalyptic number.

It is an amenable number.

171073 is a deficient number, since it is larger than the sum of its proper divisors (24447).

171073 is an equidigital number, since it uses as much as digits as its factorization.

171073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24446.

The product of its (nonzero) digits is 147, while the sum is 19.

The square root of 171073 is about 413.6097194216. The cubic root of 171073 is about 55.5128882765.

The spelling of 171073 in words is "one hundred seventy-one thousand, seventy-three", and thus it is an iban number.