171355 has 8 divisors (see below), whose sum is σ = 210672. Its totient is φ = 133728.

The previous prime is 171341. The next prime is 171383. The reversal of 171355 is 553171.

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 171355 - 2⁹ = 170843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184 + ... + 613.

It is an arithmetic number, because the mean of its divisors is an integer number (26334).

2¹⁷¹³⁵⁵ is an apocalyptic number.

171355 is a deficient number, since it is larger than the sum of its proper divisors (39317).

171355 is an equidigital number, since it uses as much as digits as its factorization.

171355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845.

The product of its digits is 525, while the sum is 22.

The square root of 171355 is about 413.9504801302. The cubic root of 171355 is about 55.5433743664.

The spelling of 171355 in words is "one hundred seventy-one thousand, three hundred fifty-five".