531263144 has 16 divisors (see below), whose sum is σ = 996777600. Its totient is φ = 265455792.

The previous prime is 531263119. The next prime is 531263171. The reversal of 531263144 is 441362135.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8654 + ... + 33725.

It is an arithmetic number, because the mean of its divisors is an integer number (62298600).

Almost surely, 2^531263144 is an apocalyptic number.

It is an amenable number.

531263144 is a deficient number, since it is larger than the sum of its proper divisors (465514456).

531263144 is a wasteful number, since it uses less digits than its factorization.

531263144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43952 (or 43948 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 531263144 is about 23049.1462748623. The cubic root of 531263144 is about 809.9096297086.

The spelling of 531263144 in words is "five hundred thirty-one million, two hundred sixty-three thousand, one hundred forty-four".