2531144 has 48 divisors (see below), whose sum is σ = 6032880. Its totient is φ = 984480.

The previous prime is 2531117. The next prime is 2531167. The reversal of 2531144 is 4411352.

2531144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

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 11 ways as a sum of consecutive naturals, for example, 4019 + ... + 4605.

It is an arithmetic number, because the mean of its divisors is an integer number (125685).

2^2531144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2531144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3016440).

2531144 is an abundant number, since it is smaller than the sum of its proper divisors (3501736).

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

2531144 is a wasteful number, since it uses less digits than its factorization.

2531144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 607 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 2531144 is about 1590.9569447348. The cubic root of 2531144 is about 136.2821420676.

Adding to 2531144 its reverse (4411352), we get a palindrome (6942496).

The spelling of 2531144 in words is "two million, five hundred thirty-one thousand, one hundred forty-four".