171409 has 8 divisors (see below), whose sum is σ = 200448. Its totient is φ = 143520.

The previous prime is 171403. The next prime is 171427. The reversal of 171409 is 904171.

171409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 171409 - 2³ = 171401 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 171409.

It is not an unprimeable number, because it can be changed into a prime (171401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69 + ... + 589.

It is an arithmetic number, because the mean of its divisors is an integer number (25056).

2¹⁷¹⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

171409 is a deficient number, since it is larger than the sum of its proper divisors (29039).

171409 is an equidigital number, since it uses as much as digits as its factorization.

171409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 171409 is about 414.0157001854. The cubic root of 171409 is about 55.5492083119.

The spelling of 171409 in words is "one hundred seventy-one thousand, four hundred nine".