9009541 has 4 divisors (see below), whose sum is σ = 9539532. Its totient is φ = 8479552.

The previous prime is 9009527. The next prime is 9009551. The reversal of 9009541 is 1459009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1459009 = 1021 ⋅1429.

It can be written as a sum of positive squares in 2 ways, for example, as 8236900 + 772641 = 2870^2 + 879^2 .

It is a cyclic number.

It is not a de Polignac number, because 9009541 - 2⁵ = 9009509 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 (9009521) 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, 264970 + ... + 265003.

It is an arithmetic number, because the mean of its divisors is an integer number (2384883).

Almost surely, 2^9009541 is an apocalyptic number.

It is an amenable number.

9009541 is a deficient number, since it is larger than the sum of its proper divisors (529991).

9009541 is a wasteful number, since it uses less digits than its factorization.

9009541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529990.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 9009541 is about 3001.5897454516. The cubic root of 9009541 is about 208.0818603454.

The spelling of 9009541 in words is "nine million, nine thousand, five hundred forty-one".