531245132 has 24 divisors (see below), whose sum is σ = 1015534800. Its totient is φ = 241156160.

The previous prime is 531245131. The next prime is 531245147. The reversal of 531245132 is 231542135.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (531245131) 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, 27494 + ... + 42642.

It is an arithmetic number, because the mean of its divisors is an integer number (42313950).

Almost surely, 2^531245132 is an apocalyptic number.

It is an amenable number.

531245132 is a deficient number, since it is larger than the sum of its proper divisors (484289668).

531245132 is a wasteful number, since it uses less digits than its factorization.

531245132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15961 (or 15959 counting only the distinct ones).

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

The square root of 531245132 is about 23048.7555412434. The cubic root of 531245132 is about 809.9004765188.

Adding to 531245132 its reverse (231542135), we get a palindrome (762787267).

The spelling of 531245132 in words is "five hundred thirty-one million, two hundred forty-five thousand, one hundred thirty-two".