8281247045 has 16 divisors (see below), whose sum is σ = 10073360880. Its totient is φ = 6534912000.

The previous prime is 8281247041. The next prime is 8281247069. The reversal of 8281247045 is 5407421828.

It can be written as a sum of positive squares in 8 ways, for example, as 1268356996 + 7012890049 = 35614^2 + 83743^2 .

It is not a de Polignac number, because 8281247045 - 2² = 8281247041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8281246993 and 8281247011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8281247041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105365 + ... + 166325.

It is an arithmetic number, because the mean of its divisors is an integer number (629585055).

Almost surely, 2^8281247045 is an apocalyptic number.

It is an amenable number.

8281247045 is a deficient number, since it is larger than the sum of its proper divisors (1792113835).

8281247045 is a wasteful number, since it uses less digits than its factorization.

8281247045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61336.

The product of its (nonzero) digits is 143360, while the sum is 41.

The square root of 8281247045 is about 91001.3573799864. The cubic root of 8281247045 is about 2023.1678429991.

The spelling of 8281247045 in words is "eight billion, two hundred eighty-one million, two hundred forty-seven thousand, forty-five".