9138513 has 8 divisors (see below), whose sum is σ = 12200800. Its totient is φ = 6084288.

The previous prime is 9138511. The next prime is 9138517. The reversal of 9138513 is 3158319.

It is a happy number.

9138513 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9138513 - 2¹ = 9138511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9138511) 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 7 ways as a sum of consecutive naturals, for example, 1518 + ... + 4536.

It is an arithmetic number, because the mean of its divisors is an integer number (1525100).

Almost surely, 2^9138513 is an apocalyptic number.

It is an amenable number.

9138513 is a deficient number, since it is larger than the sum of its proper divisors (3062287).

9138513 is a wasteful number, since it uses less digits than its factorization.

9138513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031.

The product of its digits is 3240, while the sum is 30.

The square root of 9138513 is about 3022.9973536211. The cubic root of 9138513 is about 209.0700603775.

The spelling of 9138513 in words is "nine million, one hundred thirty-eight thousand, five hundred thirteen".