531912 has 32 divisors (see below), whose sum is σ = 1368000. Its totient is φ = 172224.

The previous prime is 531911. The next prime is 531919. The reversal of 531912 is 219135.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (531911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589 + ... + 1187.

It is an arithmetic number, because the mean of its divisors is an integer number (42750).

2⁵³¹⁹¹² 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 531912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684000).

531912 is an abundant number, since it is smaller than the sum of its proper divisors (836088).

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

531912 is a wasteful number, since it uses less digits than its factorization.

531912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 641 counting only the distinct ones).

The product of its digits is 270, while the sum is 21.

The square root of 531912 is about 729.3229737229. The cubic root of 531912 is about 81.0239222133.

The spelling of 531912 in words is "five hundred thirty-one thousand, nine hundred twelve".