82140563 has 2 divisors, whose sum is σ = 82140564. Its totient is φ = 82140562.

The previous prime is 82140551. The next prime is 82140599. The reversal of 82140563 is 36504128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82140563 - 2²⁶ = 15031699 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (82140523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41070281 + 41070282.

It is an arithmetic number, because the mean of its divisors is an integer number (41070282).

Almost surely, 2^82140563 is an apocalyptic number.

82140563 is a deficient number, since it is larger than the sum of its proper divisors (1).

82140563 is an equidigital number, since it uses as much as digits as its factorization.

82140563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 82140563 is about 9063.1431082158. The cubic root of 82140563 is about 434.6962480678.

The spelling of 82140563 in words is "eighty-two million, one hundred forty thousand, five hundred sixty-three".