82645111 has 2 divisors, whose sum is σ = 82645112. Its totient is φ = 82645110.

The previous prime is 82645063. The next prime is 82645151. The reversal of 82645111 is 11154628.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82645111 - 2¹¹ = 82643063 is a prime.

It is a super-3 number, since 3×82645111³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82645111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82645151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41322555 + 41322556.

It is an arithmetic number, because the mean of its divisors is an integer number (41322556).

Almost surely, 2^82645111 is an apocalyptic number.

82645111 is a deficient number, since it is larger than the sum of its proper divisors (1).

82645111 is an equidigital number, since it uses as much as digits as its factorization.

82645111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 28.

The square root of 82645111 is about 9090.9356504157. The cubic root of 82645111 is about 435.5844717539.

Adding to 82645111 its reverse (11154628), we get a palindrome (93799739).

The spelling of 82645111 in words is "eighty-two million, six hundred forty-five thousand, one hundred eleven".