82111097 has 2 divisors, whose sum is σ = 82111098. Its totient is φ = 82111096.

The previous prime is 82111049. The next prime is 82111109. The reversal of 82111097 is 79011128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64336441 + 17774656 = 8021^2 + 4216^2 .

It is a cyclic number.

It is not a de Polignac number, because 82111097 - 2⁸ = 82110841 is a prime.

It is not a weakly prime, because it can be changed into another prime (82111697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41055548 + 41055549.

It is an arithmetic number, because the mean of its divisors is an integer number (41055549).

Almost surely, 2^82111097 is an apocalyptic number.

It is an amenable number.

82111097 is a deficient number, since it is larger than the sum of its proper divisors (1).

82111097 is an equidigital number, since it uses as much as digits as its factorization.

82111097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 82111097 is about 9061.5173674170. The cubic root of 82111097 is about 434.6442628241.

The spelling of 82111097 in words is "eighty-two million, one hundred eleven thousand, ninety-seven".