271145 has 16 divisors (see below), whose sum is σ = 380928. Its totient is φ = 181440.

The previous prime is 271129. The next prime is 271163. The reversal of 271145 is 541172.

It is not a de Polignac number, because 271145 - 2⁴ = 271129 is a prime.

It is a super-2 number, since 2×271145² = 147039222050, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2072 + ... + 2198.

It is an arithmetic number, because the mean of its divisors is an integer number (23808).

2²⁷¹¹⁴⁵ is an apocalyptic number.

It is an amenable number.

271145 is a deficient number, since it is larger than the sum of its proper divisors (109783).

271145 is a wasteful number, since it uses less digits than its factorization.

271145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200.

The product of its digits is 280, while the sum is 20.

The square root of 271145 is about 520.7158534172. The cubic root of 271145 is about 64.7242758437.

The spelling of 271145 in words is "two hundred seventy-one thousand, one hundred forty-five".