9312140 has 24 divisors (see below), whose sum is σ = 19625760. Its totient is φ = 3711488.

The previous prime is 9312137. The next prime is 9312151. The reversal of 9312140 is 412139.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a plaindrome in base 14.

It is an unprimeable number.

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, 6401 + ... + 7719.

It is an arithmetic number, because the mean of its divisors is an integer number (817740).

Almost surely, 2^9312140 is an apocalyptic number.

It is an amenable number.

9312140 is an abundant number, since it is smaller than the sum of its proper divisors (10313620).

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

9312140 is a wasteful number, since it uses less digits than its factorization.

9312140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681 (or 1679 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 9312140 is about 3051.5799186651. The cubic root of 9312140 is about 210.3858363918.

Adding to 9312140 its reverse (412139), we get a palindrome (9724279).

The spelling of 9312140 in words is "nine million, three hundred twelve thousand, one hundred forty".