65803081 has 2 divisors, whose sum is σ = 65803082. Its totient is φ = 65803080.

The previous prime is 65803043. The next prime is 65803091. The reversal of 65803081 is 18030856.

65803081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57153600 + 8649481 = 7560^2 + 2941^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65803081 is a prime.

It is a super-2 number, since 2×65803081² = 8660090938185122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65803021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32901540 + 32901541.

It is an arithmetic number, because the mean of its divisors is an integer number (32901541).

Almost surely, 2^65803081 is an apocalyptic number.

It is an amenable number.

65803081 is a deficient number, since it is larger than the sum of its proper divisors (1).

65803081 is an equidigital number, since it uses as much as digits as its factorization.

65803081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 65803081 is about 8111.9098244495. The cubic root of 65803081 is about 403.7216840267.

The spelling of 65803081 in words is "sixty-five million, eight hundred three thousand, eighty-one".