82058281 has 2 divisors, whose sum is σ = 82058282. Its totient is φ = 82058280.

The previous prime is 82058279. The next prime is 82058297. The reversal of 82058281 is 18285028.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81090025 + 968256 = 9005^2 + 984^2 .

It is a cyclic number.

It is not a de Polignac number, because 82058281 - 2¹ = 82058279 is a prime.

It is a super-2 number, since 2×82058281² = 13467122961349922, which contains 22 as substring.

Together with 82058279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (82058231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41029140 + 41029141.

It is an arithmetic number, because the mean of its divisors is an integer number (41029141).

Almost surely, 2^82058281 is an apocalyptic number.

It is an amenable number.

82058281 is a deficient number, since it is larger than the sum of its proper divisors (1).

82058281 is an equidigital number, since it uses as much as digits as its factorization.

82058281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 82058281 is about 9058.6025964273. The cubic root of 82058281 is about 434.5510513257.

The spelling of 82058281 in words is "eighty-two million, fifty-eight thousand, two hundred eighty-one".