845271 has 12 divisors (see below), whose sum is σ = 1395472. Its totient is φ = 482976.

The previous prime is 845261. The next prime is 845279. The reversal of 845271 is 172548.

It is not a de Polignac number, because 845271 - 2¹⁰ = 844247 is a prime.

It is an Ulam number.

It is a Duffinian number.

845271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845279) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6646 + ... + 6771.

2⁸⁴⁵²⁷¹ is an apocalyptic number.

845271 is a deficient number, since it is larger than the sum of its proper divisors (550201).

845271 is a wasteful number, since it uses less digits than its factorization.

845271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13430 (or 13427 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 845271 is about 919.3862082933. The cubic root of 845271 is about 94.5508250995.

The spelling of 845271 in words is "eight hundred forty-five thousand, two hundred seventy-one".