9140 has 12 divisors (see below), whose sum is σ = 19236.
Its totient is φ = 3648.
The previous prime is 9137. The next prime is 9151. The reversal of 9140 is 419.
9140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 5776 + 3364 = 76^2 + 58^2
It is a plaindrome in base 14.
It is a nialpdrome in base 13.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209 + ... + 248.
It is an arithmetic number, because the mean of its divisors is an integer number (1603).
It is an amenable number.
9140 is an abundant number, since it is smaller than the sum of its proper divisors (10096).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9618).
9140 is a wasteful number, since it uses less digits than its factorization.
9140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 466 (or 464 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 14.
The square root of 9140 is about 95.6033472217.
The cubic root of 9140 is about 20.9081399579.
Adding to 9140 its reverse (419), we get a palindrome (9559).
It can be divided in two parts, 91 and 40, that added together give a palindrome (131).
The spelling of 9140 in words is "nine thousand, one hundred forty".