20104741 has 2 divisors, whose sum is σ = 20104742. Its totient is φ = 20104740.

The previous prime is 20104739. The next prime is 20104751. The reversal of 20104741 is 14740102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14791716 + 5313025 = 3846^2 + 2305^2 .

It is a cyclic number.

It is not a de Polignac number, because 20104741 - 2¹ = 20104739 is a prime.

It is a super-2 number, since 2×20104741² = 808401221354162, which contains 22 as substring.

Together with 20104739, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20104751) 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 as a sum of consecutive naturals, namely, 10052370 + 10052371.

It is an arithmetic number, because the mean of its divisors is an integer number (10052371).

Almost surely, 2^20104741 is an apocalyptic number.

It is an amenable number.

20104741 is a deficient number, since it is larger than the sum of its proper divisors (1).

20104741 is an equidigital number, since it uses as much as digits as its factorization.

20104741 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 20104741 is about 4483.8310628301. The cubic root of 20104741 is about 271.9147882227.

Adding to 20104741 its reverse (14740102), we get a palindrome (34844843).

The spelling of 20104741 in words is "twenty million, one hundred four thousand, seven hundred forty-one".