82122239 has 2 divisors, whose sum is σ = 82122240. Its totient is φ = 82122238.

The previous prime is 82122233. The next prime is 82122251. The reversal of 82122239 is 93222128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82122239 - 2²⁴ = 65345023 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82122233) 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, 41061119 + 41061120.

It is an arithmetic number, because the mean of its divisors is an integer number (41061120).

Almost surely, 2^82122239 is an apocalyptic number.

82122239 is a deficient number, since it is larger than the sum of its proper divisors (1).

82122239 is an equidigital number, since it uses as much as digits as its factorization.

82122239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 82122239 is about 9062.1321442583. The cubic root of 82122239 is about 434.6639215041.

The spelling of 82122239 in words is "eighty-two million, one hundred twenty-two thousand, two hundred thirty-nine".