9040013 has 4 divisors (see below), whose sum is σ = 9047388. Its totient is φ = 9032640.

The previous prime is 9040007. The next prime is 9040021. The reversal of 9040013 is 3100409.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4318084 + 4721929 = 2078^2 + 2173^2 .

It is a cyclic number.

It is not a de Polignac number, because 9040013 - 2¹⁴ = 9023629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9039973 and 9040000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9040033) 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 3 ways as a sum of consecutive naturals, for example, 1358 + ... + 4463.

It is an arithmetic number, because the mean of its divisors is an integer number (2261847).

It is a Poulet number, since it divides 2^9040012-1.

Almost surely, 2^9040013 is an apocalyptic number.

It is an amenable number.

9040013 is a deficient number, since it is larger than the sum of its proper divisors (7375).

9040013 is a wasteful number, since it uses less digits than its factorization.

9040013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7374.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 9040013 is about 3006.6614375416. The cubic root of 9040013 is about 208.3161873178.

The spelling of 9040013 in words is "nine million, forty thousand, thirteen".