3131444 has 6 divisors (see below), whose sum is σ = 5480034. Its totient is φ = 1565720.

The previous prime is 3131441. The next prime is 3131467. The reversal of 3131444 is 4441313.

It is a happy number.

3131444 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 only one way, i.e., 2598544 + 532900 = 1612^2 + 730^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131441) 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 as a sum of consecutive naturals, namely, 391427 + ... + 391434.

It is an arithmetic number, because the mean of its divisors is an integer number (913339).

Almost surely, 2^3131444 is an apocalyptic number.

It is an amenable number.

3131444 is a deficient number, since it is larger than the sum of its proper divisors (2348590).

3131444 is a wasteful number, since it uses less digits than its factorization.

3131444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782865 (or 782863 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 3131444 is about 1769.5886527665. The cubic root of 3131444 is about 146.3013105567.

Adding to 3131444 its reverse (4441313), we get a palindrome (7572757).

The spelling of 3131444 in words is "three million, one hundred thirty-one thousand, four hundred forty-four".