82102841 has 2 divisors, whose sum is σ = 82102842. Its totient is φ = 82102840.

The previous prime is 82102829. The next prime is 82102871. The reversal of 82102841 is 14820128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65934400 + 16168441 = 8120^2 + 4021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82102841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82102841.

It is not a weakly prime, because it can be changed into another prime (82102871) 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, 41051420 + 41051421.

It is an arithmetic number, because the mean of its divisors is an integer number (41051421).

Almost surely, 2^82102841 is an apocalyptic number.

It is an amenable number.

82102841 is a deficient number, since it is larger than the sum of its proper divisors (1).

82102841 is an equidigital number, since it uses as much as digits as its factorization.

82102841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 82102841 is about 9061.0618031222. The cubic root of 82102841 is about 434.6296949868.

Adding to 82102841 its reverse (14820128), we get a palindrome (96922969).

The spelling of 82102841 in words is "eighty-two million, one hundred two thousand, eight hundred forty-one".