82106851 has 2 divisors, whose sum is σ = 82106852. Its totient is φ = 82106850.

The previous prime is 82106831. The next prime is 82106863. The reversal of 82106851 is 15860128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82106851 - 2²⁵ = 48552419 is a prime.

It is a super-2 number, since 2×82106851² = 13483069962272402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82106831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41053425 + 41053426.

It is an arithmetic number, because the mean of its divisors is an integer number (41053426).

Almost surely, 2^82106851 is an apocalyptic number.

82106851 is a deficient number, since it is larger than the sum of its proper divisors (1).

82106851 is an equidigital number, since it uses as much as digits as its factorization.

82106851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 82106851 is about 9061.2830769158. The cubic root of 82106851 is about 434.6367708146.

Adding to 82106851 its reverse (15860128), we get a palindrome (97966979).

The spelling of 82106851 in words is "eighty-two million, one hundred six thousand, eight hundred fifty-one".