41644121 has 2 divisors, whose sum is σ = 41644122. Its totient is φ = 41644120.

The previous prime is 41644117. The next prime is 41644153. The reversal of 41644121 is 12144614.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38875225 + 2768896 = 6235^2 + 1664^2 .

It is a cyclic number.

It is not a de Polignac number, because 41644121 - 2² = 41644117 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (41644621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20822060 + 20822061.

It is an arithmetic number, because the mean of its divisors is an integer number (20822061).

Almost surely, 2^41644121 is an apocalyptic number.

It is an amenable number.

41644121 is a deficient number, since it is larger than the sum of its proper divisors (1).

41644121 is an equidigital number, since it uses as much as digits as its factorization.

41644121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 23.

The square root of 41644121 is about 6453.2256275447. The cubic root of 41644121 is about 346.6180967251.

Adding to 41644121 its reverse (12144614), we get a palindrome (53788735).

The spelling of 41644121 in words is "forty-one million, six hundred forty-four thousand, one hundred twenty-one".