82115075 has 12 divisors (see below), whose sum is σ = 116369040. Its totient is φ = 56307360.

The previous prime is 82115071. The next prime is 82115107. The reversal of 82115075 is 57051128.

It is not a de Polignac number, because 82115075 - 2² = 82115071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82115071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234440 + ... + 234789.

It is an arithmetic number, because the mean of its divisors is an integer number (9697420).

Almost surely, 2^82115075 is an apocalyptic number.

82115075 is a deficient number, since it is larger than the sum of its proper divisors (34253965).

82115075 is a wasteful number, since it uses less digits than its factorization.

82115075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469246 (or 469241 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 82115075 is about 9061.7368644206. The cubic root of 82115075 is about 434.6512817168.

The spelling of 82115075 in words is "eighty-two million, one hundred fifteen thousand, seventy-five".