3131140 has 24 divisors (see below), whose sum is σ = 6717312. Its totient is φ = 1225440.

The previous prime is 3131137. The next prime is 3131153. The reversal of 3131140 is 411313.

3131140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3131140.

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, 726 + ... + 2605.

It is an arithmetic number, because the mean of its divisors is an integer number (279888).

Almost surely, 2^3131140 is an apocalyptic number.

It is an amenable number.

3131140 is an abundant number, since it is smaller than the sum of its proper divisors (3586172).

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

3131140 is a wasteful number, since it uses less digits than its factorization.

3131140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387 (or 3385 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3131140 is about 1769.5027550134. The cubic root of 3131140 is about 146.2965761021.

Adding to 3131140 its reverse (411313), we get a palindrome (3542453).

The spelling of 3131140 in words is "three million, one hundred thirty-one thousand, one hundred forty".