9138535 has 8 divisors (see below), whose sum is σ = 12532896. Its totient is φ = 6266400.

The previous prime is 9138533. The next prime is 9138541. The reversal of 9138535 is 5358319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9138535 - 2¹ = 9138533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9138535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9138533) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 130516 + ... + 130585.

It is an arithmetic number, because the mean of its divisors is an integer number (1566612).

Almost surely, 2^9138535 is an apocalyptic number.

9138535 is a deficient number, since it is larger than the sum of its proper divisors (3394361).

9138535 is a wasteful number, since it uses less digits than its factorization.

9138535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261113.

The product of its digits is 16200, while the sum is 34.

The square root of 9138535 is about 3023.0009923915. Note that the first 3 decimals coincide. The cubic root of 9138535 is about 209.0702281487.

The spelling of 9138535 in words is "nine million, one hundred thirty-eight thousand, five hundred thirty-five".