9005481 has 6 divisors (see below), whose sum is σ = 13007930. Its totient is φ = 6003648.

The previous prime is 9005473. The next prime is 9005497. The reversal of 9005481 is 1845009.

It can be written as a sum of positive squares in only one way, i.e., 8037225 + 968256 = 2835^2 + 984^2 .

It is not a de Polignac number, because 9005481 - 2³ = 9005473 is a prime.

It is a super-2 number, since 2×9005481² = 162197376082722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9005401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500296 + ... + 500313.

Almost surely, 2^9005481 is an apocalyptic number.

It is an amenable number.

9005481 is a deficient number, since it is larger than the sum of its proper divisors (4002449).

9005481 is a wasteful number, since it uses less digits than its factorization.

9005481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000615 (or 1000612 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 9005481 is about 3000.9133609620. The cubic root of 9005481 is about 208.0505994379.

The spelling of 9005481 in words is "nine million, five thousand, four hundred eighty-one".