82130089 has 2 divisors, whose sum is σ = 82130090. Its totient is φ = 82130088.

The previous prime is 82130051. The next prime is 82130101. The reversal of 82130089 is 98003128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75550864 + 6579225 = 8692^2 + 2565^2 .

It is a cyclic number.

It is not a de Polignac number, because 82130089 - 2⁹ = 82129577 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82130089.

It is not a weakly prime, because it can be changed into another prime (82110089) 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, 41065044 + 41065045.

It is an arithmetic number, because the mean of its divisors is an integer number (41065045).

Almost surely, 2^82130089 is an apocalyptic number.

It is an amenable number.

82130089 is a deficient number, since it is larger than the sum of its proper divisors (1).

82130089 is an equidigital number, since it uses as much as digits as its factorization.

82130089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 82130089 is about 9062.5652549375. The cubic root of 82130089 is about 434.6777707899.

The spelling of 82130089 in words is "eighty-two million, one hundred thirty thousand, eighty-nine".