9012805445 has 24 divisors (see below), whose sum is σ = 12586668408. Its totient is φ = 6177494400.

The previous prime is 9012805421. The next prime is 9012805447. The reversal of 9012805445 is 5445082109.

9012805445 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1982653729 + 7030151716 = 44527^2 + 83846^2 .

It is not a de Polignac number, because 9012805445 - 2¹⁰ = 9012804421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9012805399 and 9012805408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9012805447) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 664835 + ... + 678255.

It is an arithmetic number, because the mean of its divisors is an integer number (524444517).

Almost surely, 2^9012805445 is an apocalyptic number.

It is an amenable number.

9012805445 is a deficient number, since it is larger than the sum of its proper divisors (3573862963).

9012805445 is a wasteful number, since it uses less digits than its factorization.

9012805445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16181 (or 16174 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 9012805445 is about 94935.7964363285. The cubic root of 9012805445 is about 2081.0698888286.

The spelling of 9012805445 in words is "nine billion, twelve million, eight hundred five thousand, four hundred forty-five".