82108123 has 2 divisors, whose sum is σ = 82108124. Its totient is φ = 82108122.

The previous prime is 82108109. The next prime is 82108127. The reversal of 82108123 is 32180128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82108123 - 2⁹ = 82107611 is a prime.

It is not a weakly prime, because it can be changed into another prime (82108127) 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, 41054061 + 41054062.

It is an arithmetic number, because the mean of its divisors is an integer number (41054062).

Almost surely, 2^82108123 is an apocalyptic number.

82108123 is a deficient number, since it is larger than the sum of its proper divisors (1).

82108123 is an equidigital number, since it uses as much as digits as its factorization.

82108123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 82108123 is about 9061.3532653793. The cubic root of 82108123 is about 434.6390152685.

The spelling of 82108123 in words is "eighty-two million, one hundred eight thousand, one hundred twenty-three".