171080005 has 4 divisors (see below), whose sum is σ = 205296012. Its totient is φ = 136864000.

The previous prime is 171079981. The next prime is 171080023. The reversal of 171080005 is 500080171.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 123276609 + 47803396 = 11103^2 + 6914^2 .

It is not a de Polignac number, because 171080005 - 2⁵ = 171079973 is a prime.

It is a super-2 number, since 2×171080005² = 58536736221600050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17107996 + ... + 17108005.

It is an arithmetic number, because the mean of its divisors is an integer number (51324003).

Almost surely, 2^171080005 is an apocalyptic number.

It is an amenable number.

171080005 is a deficient number, since it is larger than the sum of its proper divisors (34216007).

171080005 is an equidigital number, since it uses as much as digits as its factorization.

171080005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34216006.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 171080005 is about 13079.7555405290. The cubic root of 171080005 is about 555.1364596955.

The spelling of 171080005 in words is "one hundred seventy-one million, eighty thousand, five".