9138536 has 32 divisors (see below), whose sum is σ = 18878400. Its totient is φ = 4112640.

The previous prime is 9138533. The next prime is 9138541. The reversal of 9138536 is 6358319.

9138536 = 35³ + 36³ + ... + 78³.

It is a junction number, because it is equal to n+sod(n) for n = 9138496 and 9138505.

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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9485 + ... + 10403.

It is an arithmetic number, because the mean of its divisors is an integer number (589950).

Almost surely, 2^9138536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9138536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9439200).

9138536 is an abundant number, since it is smaller than the sum of its proper divisors (9739864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9138536 is a wasteful number, since it uses less digits than its factorization.

9138536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1045 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 9138536 is about 3023.0011577901. The cubic root of 9138536 is about 209.0702357747.

It can be divided in two parts, 913 and 8536, that added together give a palindrome (9449).

The spelling of 9138536 in words is "nine million, one hundred thirty-eight thousand, five hundred thirty-six".