171601 has 4 divisors (see below), whose sum is σ = 172852. Its totient is φ = 170352.

The previous prime is 171583. The next prime is 171617. The reversal of 171601 is 106171.

171601 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: 106171 = 13 ⋅8167.

It can be written as a sum of positive squares in 2 ways, for example, as 123201 + 48400 = 351^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 171601 - 2⁷ = 171473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171641) 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, 390 + ... + 703.

It is an arithmetic number, because the mean of its divisors is an integer number (43213).

2¹⁷¹⁶⁰¹ is an apocalyptic number.

It is an amenable number.

171601 is a deficient number, since it is larger than the sum of its proper divisors (1251).

171601 is a wasteful number, since it uses less digits than its factorization.

171601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 171601 is about 414.2475105538. The cubic root of 171601 is about 55.5699413116.

Adding to 171601 its reverse (106171), we get a palindrome (277772).

It can be divided in two parts, 17160 and 1, that added together give a square (17161 = 131²).

The spelling of 171601 in words is "one hundred seventy-one thousand, six hundred one".