9072045 has 18 divisors (see below), whose sum is σ = 15759978. Its totient is φ = 4827648.

The previous prime is 9072043. The next prime is 9072059. The reversal of 9072045 is 5402709.

9072045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1602756 + 7469289 = 1266^2 + 2733^2 .

It is not a de Polignac number, because 9072045 - 2¹ = 9072043 is a prime.

9072045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9072043) 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 17 ways as a sum of consecutive naturals, for example, 19981 + ... + 20429.

Almost surely, 2^9072045 is an apocalyptic number.

It is an amenable number.

9072045 is a deficient number, since it is larger than the sum of its proper divisors (6687933).

9072045 is an equidigital number, since it uses as much as digits as its factorization.

9072045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 9072045 is about 3011.9835656922. The cubic root of 9072045 is about 208.5619435365.

The spelling of 9072045 in words is "nine million, seventy-two thousand, forty-five".