82319245 has 4 divisors (see below), whose sum is σ = 98783100. Its totient is φ = 65855392.

The previous prime is 82319239. The next prime is 82319249. The reversal of 82319245 is 54291328.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17065161 + 65254084 = 4131^2 + 8078^2 .

It is a cyclic number.

It is not a de Polignac number, because 82319245 - 2⁵ = 82319213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82319245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82319249) 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 3 ways as a sum of consecutive naturals, for example, 8231920 + ... + 8231929.

It is an arithmetic number, because the mean of its divisors is an integer number (24695775).

Almost surely, 2^82319245 is an apocalyptic number.

It is an amenable number.

82319245 is a deficient number, since it is larger than the sum of its proper divisors (16463855).

82319245 is a wasteful number, since it uses less digits than its factorization.

82319245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16463854.

The product of its digits is 17280, while the sum is 34.

The square root of 82319245 is about 9072.9953708795. The cubic root of 82319245 is about 435.0112209199.

The spelling of 82319245 in words is "eighty-two million, three hundred nineteen thousand, two hundred forty-five".