531043312 has 40 divisors (see below), whose sum is σ = 1086703760. Its totient is φ = 250698240.

The previous prime is 531043291. The next prime is 531043339. The reversal of 531043312 is 213340135.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 92362 + ... + 97942.

It is an arithmetic number, because the mean of its divisors is an integer number (27167594).

Almost surely, 2^531043312 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 531043312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543351880).

531043312 is an abundant number, since it is smaller than the sum of its proper divisors (555660448).

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

531043312 is a wasteful number, since it uses less digits than its factorization.

531043312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5921 (or 5915 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 531043312 is about 23044.3770147947. The cubic root of 531043312 is about 809.7979031446.

Adding to 531043312 its reverse (213340135), we get a palindrome (744383447).

The spelling of 531043312 in words is "five hundred thirty-one million, forty-three thousand, three hundred twelve".