20041471 has 2 divisors, whose sum is σ = 20041472. Its totient is φ = 20041470.

The previous prime is 20041433. The next prime is 20041477. The reversal of 20041471 is 17414002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20041471 - 2⁹ = 20040959 is a prime.

It is a super-3 number, since 3×20041471³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20041477) 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, 10020735 + 10020736.

It is an arithmetic number, because the mean of its divisors is an integer number (10020736).

Almost surely, 2^20041471 is an apocalyptic number.

20041471 is a deficient number, since it is larger than the sum of its proper divisors (1).

20041471 is an equidigital number, since it uses as much as digits as its factorization.

20041471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20041471 is about 4476.7701526882. The cubic root of 20041471 is about 271.6292481532.

Adding to 20041471 its reverse (17414002), we get a palindrome (37455473).

The spelling of 20041471 in words is "twenty million, forty-one thousand, four hundred seventy-one".