531030005144 has 8 divisors (see below), whose sum is σ = 995681259660. Its totient is φ = 265515002568.

The previous prime is 531030005087. The next prime is 531030005221. The reversal of 531030005144 is 441500030135.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33189375314 + ... + 33189375329.

Almost surely, 2^531030005144 is an apocalyptic number.

It is an amenable number.

531030005144 is a deficient number, since it is larger than the sum of its proper divisors (464651254516).

531030005144 is a wasteful number, since it uses less digits than its factorization.

531030005144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66378750649 (or 66378750645 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 531030005144 its reverse (441500030135), we get a palindrome (972530035279).

The spelling of 531030005144 in words is "five hundred thirty-one billion, thirty million, five thousand, one hundred forty-four".