20754271 has 2 divisors, whose sum is σ = 20754272. Its totient is φ = 20754270.

The previous prime is 20754269. The next prime is 20754281. The reversal of 20754271 is 17245702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20754271 - 2¹ = 20754269 is a prime.

It is a super-3 number, since 3×20754271³ (a number of 23 digits) contains 333 as substring.

Together with 20754269, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20754281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10377135 + 10377136.

It is an arithmetic number, because the mean of its divisors is an integer number (10377136).

Almost surely, 2^20754271 is an apocalyptic number.

20754271 is a deficient number, since it is larger than the sum of its proper divisors (1).

20754271 is an equidigital number, since it uses as much as digits as its factorization.

20754271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 20754271 is about 4555.6855686055. The cubic root of 20754271 is about 274.8120853964.

Adding to 20754271 its reverse (17245702), we get a palindrome (37999973).

It can be divided in two parts, 20754 and 271, that added together give a square (21025 = 145²).

The spelling of 20754271 in words is "twenty million, seven hundred fifty-four thousand, two hundred seventy-one".