82012243 has 4 divisors (see below), whose sum is σ = 83356768. Its totient is φ = 80667720.

The previous prime is 82012241. The next prime is 82012279. The reversal of 82012243 is 34221028.

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

It is a cyclic number.

It is not a de Polignac number, because 82012243 - 2¹ = 82012241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82012241) 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, 672171 + ... + 672292.

It is an arithmetic number, because the mean of its divisors is an integer number (20839192).

Almost surely, 2^82012243 is an apocalyptic number.

82012243 is a deficient number, since it is larger than the sum of its proper divisors (1344525).

82012243 is a wasteful number, since it uses less digits than its factorization.

82012243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344524.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 82012243 is about 9056.0611194934. The cubic root of 82012243 is about 434.4697692435.

The spelling of 82012243 in words is "eighty-two million, twelve thousand, two hundred forty-three".