41361821 has 2 divisors, whose sum is σ = 41361822. Its totient is φ = 41361820.

The previous prime is 41361779. The next prime is 41361839. The reversal of 41361821 is 12816314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22992025 + 18369796 = 4795^2 + 4286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41361821 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41361851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20680910 + 20680911.

It is an arithmetic number, because the mean of its divisors is an integer number (20680911).

Almost surely, 2^41361821 is an apocalyptic number.

It is an amenable number.

41361821 is a deficient number, since it is larger than the sum of its proper divisors (1).

41361821 is an equidigital number, since it uses as much as digits as its factorization.

41361821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 26.

The square root of 41361821 is about 6431.3156507825. The cubic root of 41361821 is about 345.8330941241.

The spelling of 41361821 in words is "forty-one million, three hundred sixty-one thousand, eight hundred twenty-one".