82043245 has 16 divisors (see below), whose sum is σ = 101541168. Its totient is φ = 63590400.

The previous prime is 82043237. The next prime is 82043249. The reversal of 82043245 is 54234028.

It can be written as a sum of positive squares in 8 ways, for example, as 9418761 + 72624484 = 3069^2 + 8522^2 .

It is not a de Polignac number, because 82043245 - 2³ = 82043237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82043249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50445 + ... + 52045.

It is an arithmetic number, because the mean of its divisors is an integer number (6346323).

Almost surely, 2^82043245 is an apocalyptic number.

It is an amenable number.

82043245 is a deficient number, since it is larger than the sum of its proper divisors (19497923).

82043245 is a wasteful number, since it uses less digits than its factorization.

82043245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920.

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

The square root of 82043245 is about 9057.7726290739. The cubic root of 82043245 is about 434.5245079606.

It can be divided in two parts, 8204 and 3245, that added together give a square (11449 = 107²).

The spelling of 82043245 in words is "eighty-two million, forty-three thousand, two hundred forty-five".