531345132 has 36 divisors (see below), whose sum is σ = 1422131256. Its totient is φ = 166696320.

The previous prime is 531345121. The next prime is 531345179. The reversal of 531345132 is 231543135.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 531345096 and 531345105.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433494 + ... + 434717.

It is an arithmetic number, because the mean of its divisors is an integer number (39503646).

Almost surely, 2^531345132 is an apocalyptic number.

It is an amenable number.

531345132 is an abundant number, since it is smaller than the sum of its proper divisors (890786124).

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

531345132 is a wasteful number, since it uses less digits than its factorization.

531345132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868238 (or 868233 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 531345132 is about 23050.9247536840. The cubic root of 531345132 is about 809.9512910810.

Adding to 531345132 its reverse (231543135), we get a palindrome (762888267).

The spelling of 531345132 in words is "five hundred thirty-one million, three hundred forty-five thousand, one hundred thirty-two".