9138529 has 3 divisors (see below), whose sum is σ = 9141553. Its totient is φ = 9135506.

The previous prime is 9138527. The next prime is 9138533. The reversal of 9138529 is 9258319.

The square root of 9138529 is 3023.

It is a perfect power (a square), and thus also a powerful number.

9138529 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 9138529 - 2¹ = 9138527 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9138523) 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 2 ways as a sum of consecutive naturals, for example, 1512 + ... + 4534.

Almost surely, 2^9138529 is an apocalyptic number.

9138529 is the 3023-rd square number.

9138529 is the 1512-nd centered octagonal number.

It is an amenable number.

9138529 is a deficient number, since it is larger than the sum of its proper divisors (3024).

9138529 is an frugal number, since it uses more digits than its factorization.

9138529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6046 (or 3023 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The cubic root of 9138529 is about 209.0701823930.

The spelling of 9138529 in words is "nine million, one hundred thirty-eight thousand, five hundred twenty-nine".