20173271 has 16 divisors (see below), whose sum is σ = 22171968. Its totient is φ = 18278400.

The previous prime is 20173261. The next prime is 20173289. The reversal of 20173271 is 17237102.

It is not a de Polignac number, because 20173271 - 2⁶ = 20173207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20173261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71651 + ... + 71931.

It is an arithmetic number, because the mean of its divisors is an integer number (1385748).

Almost surely, 2^20173271 is an apocalyptic number.

20173271 is a deficient number, since it is larger than the sum of its proper divisors (1998697).

20173271 is a wasteful number, since it uses less digits than its factorization.

20173271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 20173271 is about 4491.4664643076. The cubic root of 20173271 is about 272.2233918471.

The spelling of 20173271 in words is "twenty million, one hundred seventy-three thousand, two hundred seventy-one".