65336281 has 2 divisors, whose sum is σ = 65336282. Its totient is φ = 65336280.

The previous prime is 65336237. The next prime is 65336303. The reversal of 65336281 is 18263356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62663056 + 2673225 = 7916^2 + 1635^2 .

It is a cyclic number.

It is not a de Polignac number, because 65336281 - 2¹³ = 65328089 is a prime.

It is a super-2 number, since 2×65336281² = 8537659229821922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65336981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32668140 + 32668141.

It is an arithmetic number, because the mean of its divisors is an integer number (32668141).

Almost surely, 2^65336281 is an apocalyptic number.

It is an amenable number.

65336281 is a deficient number, since it is larger than the sum of its proper divisors (1).

65336281 is an equidigital number, since it uses as much as digits as its factorization.

65336281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 65336281 is about 8083.0861061849. The cubic root of 65336281 is about 402.7647649090.

The spelling of 65336281 in words is "sixty-five million, three hundred thirty-six thousand, two hundred eighty-one".