82243045 has 8 divisors (see below), whose sum is σ = 101359224. Its totient is φ = 64016064.

The previous prime is 82243033. The next prime is 82243079. The reversal of 82243045 is 54034228.

It can be written as a sum of positive squares in 4 ways, for example, as 9771876 + 72471169 = 3126^2 + 8513^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82243045 - 2¹⁷ = 82111973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222094 + ... + 222463.

It is an arithmetic number, because the mean of its divisors is an integer number (12669903).

Almost surely, 2^82243045 is an apocalyptic number.

It is an amenable number.

82243045 is a deficient number, since it is larger than the sum of its proper divisors (19116179).

82243045 is a wasteful number, since it uses less digits than its factorization.

82243045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444599.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 82243045 is about 9068.7951239401. The cubic root of 82243045 is about 434.8769546729.

The spelling of 82243045 in words is "eighty-two million, two hundred forty-three thousand, forty-five".