45271 has 4 divisors (see below), whose sum is σ = 47952. Its totient is φ = 42592.

The previous prime is 45263. The next prime is 45281. The reversal of 45271 is 17254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17254 = 2 ⋅8627.

It is a cyclic number.

It is not a de Polignac number, because 45271 - 2³ = 45263 is a prime.

It is a Duffinian number.

45271 is a lucky number.

It is a plaindrome in base 12.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315 + ... + 1348.

It is an arithmetic number, because the mean of its divisors is an integer number (11988).

2⁴⁵²⁷¹ is an apocalyptic number.

45271 is a deficient number, since it is larger than the sum of its proper divisors (2681).

45271 is a wasteful number, since it uses less digits than its factorization.

45271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680.

The product of its digits is 280, while the sum is 19.

The square root of 45271 is about 212.7698286882. The cubic root of 45271 is about 35.6401915306.

The spelling of 45271 in words is "forty-five thousand, two hundred seventy-one".