41318621 has 2 divisors, whose sum is σ = 41318622. Its totient is φ = 41318620.

The previous prime is 41318587. The next prime is 41318623. The reversal of 41318621 is 12681314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39866596 + 1452025 = 6314^2 + 1205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41318621 is a prime.

Together with 41318623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41318623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20659310 + 20659311.

It is an arithmetic number, because the mean of its divisors is an integer number (20659311).

Almost surely, 2^41318621 is an apocalyptic number.

It is an amenable number.

41318621 is a deficient number, since it is larger than the sum of its proper divisors (1).

41318621 is an equidigital number, since it uses as much as digits as its factorization.

41318621 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 41318621 is about 6427.9562070692. The cubic root of 41318621 is about 345.7126513773.

Subtracting from 41318621 its sum of digits (26), we obtain a triangular number (41318595 = T₉₀₉₀).

Adding to 41318621 its reverse (12681314), we get a palindrome (53999935).

The spelling of 41318621 in words is "forty-one million, three hundred eighteen thousand, six hundred twenty-one".