82542443 has 2 divisors, whose sum is σ = 82542444. Its totient is φ = 82542442.

The previous prime is 82542437. The next prime is 82542457. The reversal of 82542443 is 34424528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82542443 - 2⁶ = 82542379 is a prime.

It is not a weakly prime, because it can be changed into another prime (82542643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41271221 + 41271222.

It is an arithmetic number, because the mean of its divisors is an integer number (41271222).

Almost surely, 2^82542443 is an apocalyptic number.

82542443 is a deficient number, since it is larger than the sum of its proper divisors (1).

82542443 is an equidigital number, since it uses as much as digits as its factorization.

82542443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 32.

The square root of 82542443 is about 9085.2871721262. The cubic root of 82542443 is about 435.4040250333.

The spelling of 82542443 in words is "eighty-two million, five hundred forty-two thousand, four hundred forty-three".