82159543 has 2 divisors, whose sum is σ = 82159544. Its totient is φ = 82159542.

The previous prime is 82159463. The next prime is 82159631. The reversal of 82159543 is 34595128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82159543 - 2¹³ = 82151351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82109543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41079771 + 41079772.

It is an arithmetic number, because the mean of its divisors is an integer number (41079772).

Almost surely, 2^82159543 is an apocalyptic number.

82159543 is a deficient number, since it is larger than the sum of its proper divisors (1).

82159543 is an equidigital number, since it uses as much as digits as its factorization.

82159543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 37.

The square root of 82159543 is about 9064.1901458431. The cubic root of 82159543 is about 434.7297268554.

The spelling of 82159543 in words is "eighty-two million, one hundred fifty-nine thousand, five hundred forty-three".