216065741 has 2 divisors, whose sum is σ = 216065742. Its totient is φ = 216065740.

The previous prime is 216065737. The next prime is 216065761. The reversal of 216065741 is 147560612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143304841 + 72760900 = 11971^2 + 8530^2 .

It is a cyclic number.

It is not a de Polignac number, because 216065741 - 2² = 216065737 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 216065698 and 216065707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216065761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108032870 + 108032871.

It is an arithmetic number, because the mean of its divisors is an integer number (108032871).

Almost surely, 2^216065741 is an apocalyptic number.

It is an amenable number.

216065741 is a deficient number, since it is larger than the sum of its proper divisors (1).

216065741 is an equidigital number, since it uses as much as digits as its factorization.

216065741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 216065741 is about 14699.1748407861. The cubic root of 216065741 is about 600.0608651218.

The spelling of 216065741 in words is "two hundred sixteen million, sixty-five thousand, seven hundred forty-one".