65086181 has 2 divisors, whose sum is σ = 65086182. Its totient is φ = 65086180.

The previous prime is 65086169. The next prime is 65086187. The reversal of 65086181 is 18168056.

65086181 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., 60202081 + 4884100 = 7759^2 + 2210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65086181 is a prime.

It is a super-2 number, since 2×65086181² = 8472421914329522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65086187) 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, 32543090 + 32543091.

It is an arithmetic number, because the mean of its divisors is an integer number (32543091).

Almost surely, 2^65086181 is an apocalyptic number.

It is an amenable number.

65086181 is a deficient number, since it is larger than the sum of its proper divisors (1).

65086181 is an equidigital number, since it uses as much as digits as its factorization.

65086181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 65086181 is about 8067.6006966136. The cubic root of 65086181 is about 402.2501949039.

The spelling of 65086181 in words is "sixty-five million, eighty-six thousand, one hundred eighty-one".