41130721 has 2 divisors, whose sum is σ = 41130722. Its totient is φ = 41130720.

The previous prime is 41130709. The next prime is 41130731. The reversal of 41130721 is 12703114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28740321 + 12390400 = 5361^2 + 3520^2 .

It is a cyclic number.

It is not a de Polignac number, because 41130721 - 2⁵ = 41130689 is a prime.

It is not a weakly prime, because it can be changed into another prime (41130731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20565360 + 20565361.

It is an arithmetic number, because the mean of its divisors is an integer number (20565361).

Almost surely, 2^41130721 is an apocalyptic number.

It is an amenable number.

41130721 is a deficient number, since it is larger than the sum of its proper divisors (1).

41130721 is an equidigital number, since it uses as much as digits as its factorization.

41130721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 41130721 is about 6413.3237092790. The cubic root of 41130721 is about 345.1878022523.

Adding to 41130721 its reverse (12703114), we get a palindrome (53833835).

The spelling of 41130721 in words is "forty-one million, one hundred thirty thousand, seven hundred twenty-one".