531145032 has 32 divisors (see below), whose sum is σ = 1448578080. Its totient is φ = 160952960.

The previous prime is 531144989. The next prime is 531145099. The reversal of 531145032 is 230541135.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 531144993 and 531145011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005693 + ... + 1006220.

It is an arithmetic number, because the mean of its divisors is an integer number (45268065).

Almost surely, 2^531145032 is an apocalyptic number.

It is an amenable number.

531145032 is an abundant number, since it is smaller than the sum of its proper divisors (917433048).

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

531145032 is a wasteful number, since it uses less digits than its factorization.

531145032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011933 (or 2011929 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 531145032 is about 23046.5839551114. The cubic root of 531145032 is about 809.8496047553.

Adding to 531145032 its reverse (230541135), we get a palindrome (761686167).

The spelling of 531145032 in words is "five hundred thirty-one million, one hundred forty-five thousand, thirty-two".