3131144 has 8 divisors (see below), whose sum is σ = 5870910. Its totient is φ = 1565568.

The previous prime is 3131137. The next prime is 3131153. The reversal of 3131144 is 4411313.

3131144 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., 3062500 + 68644 = 1750^2 + 262^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 195689 + ... + 195704.

Almost surely, 2^3131144 is an apocalyptic number.

It is an amenable number.

3131144 is a deficient number, since it is larger than the sum of its proper divisors (2739766).

3131144 is a wasteful number, since it uses less digits than its factorization.

3131144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391399 (or 391395 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 3131144 is about 1769.5038852741. The cubic root of 3131144 is about 146.2966383996.

Adding to 3131144 its reverse (4411313), we get a palindrome (7542457).

The spelling of 3131144 in words is "three million, one hundred thirty-one thousand, one hundred forty-four".