21014041 has 2 divisors, whose sum is σ = 21014042. Its totient is φ = 21014040.

The previous prime is 21013997. The next prime is 21014047. The reversal of 21014041 is 14041012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14784025 + 6230016 = 3845^2 + 2496^2 .

It is a cyclic number.

It is not a de Polignac number, because 21014041 - 2⁹ = 21013529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21014047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10507020 + 10507021.

It is an arithmetic number, because the mean of its divisors is an integer number (10507021).

Almost surely, 2^21014041 is an apocalyptic number.

It is an amenable number.

21014041 is a deficient number, since it is larger than the sum of its proper divisors (1).

21014041 is an equidigital number, since it uses as much as digits as its factorization.

21014041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 21014041 is about 4584.1074376589. The cubic root of 21014041 is about 275.9538929141.

Adding to 21014041 its reverse (14041012), we get a palindrome (35055053).

The spelling of 21014041 in words is "twenty-one million, fourteen thousand, forty-one".