2531728144 has 20 divisors (see below), whose sum is σ = 5351153040. Its totient is φ = 1150785440.

The previous prime is 2531728141. The next prime is 2531728163. The reversal of 2531728144 is 4418271352.

It is not an unprimeable number, because it can be changed into a prime (2531728141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7192234 + ... + 7192585.

It is an arithmetic number, because the mean of its divisors is an integer number (267557652).

Almost surely, 2^2531728144 is an apocalyptic number.

It is an amenable number.

2531728144 is an abundant number, since it is smaller than the sum of its proper divisors (2819424896).

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

2531728144 is a wasteful number, since it uses less digits than its factorization.

2531728144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14384838 (or 14384832 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 2531728144 is about 50316.2811026411. The cubic root of 2531728144 is about 1362.9262511038.

Adding to 2531728144 its reverse (4418271352), we get a palindrome (6949999496).

The spelling of 2531728144 in words is "two billion, five hundred thirty-one million, seven hundred twenty-eight thousand, one hundred forty-four".