9040165 has 4 divisors (see below), whose sum is σ = 10848204. Its totient is φ = 7232128.

The previous prime is 9040159. The next prime is 9040169. The reversal of 9040165 is 5610409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5610409 = 7 ⋅801487.

It can be written as a sum of positive squares in 2 ways, for example, as 5171076 + 3869089 = 2274^2 + 1967^2 .

It is a cyclic number.

It is not a de Polignac number, because 9040165 - 2¹⁹ = 8515877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9040169) 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, 904012 + ... + 904021.

It is an arithmetic number, because the mean of its divisors is an integer number (2712051).

Almost surely, 2^9040165 is an apocalyptic number.

It is an amenable number.

9040165 is a deficient number, since it is larger than the sum of its proper divisors (1808039).

9040165 is a wasteful number, since it uses less digits than its factorization.

9040165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808038.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 9040165 is about 3006.6867146412. The cubic root of 9040165 is about 208.3173548634.

The spelling of 9040165 in words is "nine million, forty thousand, one hundred sixty-five".