9138533 has 2 divisors, whose sum is σ = 9138534. Its totient is φ = 9138532.

The previous prime is 9138527. The next prime is 9138541. The reversal of 9138533 is 3358319.

9138533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9138529 + 4 = 3023^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 9138533 - 2⁴ = 9138517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9138533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9138523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4569266 + 4569267.

It is an arithmetic number, because the mean of its divisors is an integer number (4569267).

Almost surely, 2^9138533 is an apocalyptic number.

It is an amenable number.

9138533 is a deficient number, since it is larger than the sum of its proper divisors (1).

9138533 is an equidigital number, since it uses as much as digits as its factorization.

9138533 is an evil number, because the sum of its binary digits is even.

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

The square root of 9138533 is about 3023.0006615944. Note that the first 3 decimals coincide. The cubic root of 9138533 is about 209.0702128968.

The spelling of 9138533 in words is "nine million, one hundred thirty-eight thousand, five hundred thirty-three".