445171 has 4 divisors (see below), whose sum is σ = 446752. Its totient is φ = 443592.

The previous prime is 445169. The next prime is 445183. The reversal of 445171 is 171544.

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

It is a cyclic number.

It is not a de Polignac number, because 445171 - 2¹ = 445169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445141) 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, 240 + ... + 973.

It is an arithmetic number, because the mean of its divisors is an integer number (111688).

2⁴⁴⁵¹⁷¹ is an apocalyptic number.

445171 is a deficient number, since it is larger than the sum of its proper divisors (1581).

445171 is a wasteful number, since it uses less digits than its factorization.

445171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580.

The product of its digits is 560, while the sum is 22.

The square root of 445171 is about 667.2113608145. The cubic root of 445171 is about 76.3558451218.

It can be divided in two parts, 445 and 171, that added together give a palindrome (616).

The spelling of 445171 in words is "four hundred forty-five thousand, one hundred seventy-one".