82119841 has 2 divisors, whose sum is σ = 82119842. Its totient is φ = 82119840.

The previous prime is 82119833. The next prime is 82119853. The reversal of 82119841 is 14891128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54819216 + 27300625 = 7404^2 + 5225^2 .

It is a cyclic number.

It is not a de Polignac number, because 82119841 - 2³ = 82119833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82119797 and 82119806.

It is not a weakly prime, because it can be changed into another prime (82119811) 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, 41059920 + 41059921.

It is an arithmetic number, because the mean of its divisors is an integer number (41059921).

Almost surely, 2^82119841 is an apocalyptic number.

It is an amenable number.

82119841 is a deficient number, since it is larger than the sum of its proper divisors (1).

82119841 is an equidigital number, since it uses as much as digits as its factorization.

82119841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 34.

The square root of 82119841 is about 9061.9998344736. Note that the first 3 decimals coincide. The cubic root of 82119841 is about 434.6596906800.

The spelling of 82119841 in words is "eighty-two million, one hundred nineteen thousand, eight hundred forty-one".