20271273 has 16 divisors (see below), whose sum is σ = 29565696. Its totient is φ = 12252240.

The previous prime is 20271239. The next prime is 20271289. The reversal of 20271273 is 37217202.

It is not a de Polignac number, because 20271273 - 2¹⁷ = 20140201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20271373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17490 + ... + 18612.

It is an arithmetic number, because the mean of its divisors is an integer number (1847856).

Almost surely, 2^20271273 is an apocalyptic number.

It is an amenable number.

20271273 is a deficient number, since it is larger than the sum of its proper divisors (9294423).

20271273 is a wasteful number, since it uses less digits than its factorization.

20271273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 20271273 is about 4502.3630462236. The cubic root of 20271273 is about 272.6635014634.

Adding to 20271273 its reverse (37217202), we get a palindrome (57488475).

The spelling of 20271273 in words is "twenty million, two hundred seventy-one thousand, two hundred seventy-three".