9133538 has 6 divisors (see below), whose sum is σ = 13706721. Its totient is φ = 4564632.

The previous prime is 9133519. The next prime is 9133559. The reversal of 9133538 is 8353319.

It can be written as a sum of positive squares in 2 ways, for example, as 6466849 + 2666689 = 2543^2 + 1633^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2137.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 3206 + ... + 5342.

Almost surely, 2^9133538 is an apocalyptic number.

9133538 is a deficient number, since it is larger than the sum of its proper divisors (4573183).

9133538 is an frugal number, since it uses more digits than its factorization.

9133538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4276 (or 2139 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 9133538 is about 3022.1743827913. The cubic root of 9133538 is about 209.0321142932.

Multiplying 9133538 by its sum of digits (32), we get a square (292273216 = 17096²).

The spelling of 9133538 in words is "nine million, one hundred thirty-three thousand, five hundred thirty-eight".