531143032 has 32 divisors (see below), whose sum is σ = 1139328000. Its totient is φ = 227399904.

The previous prime is 531143023. The next prime is 531143059. The reversal of 531143032 is 230341135.

It is a super-2 number, since 2×531143032² = 564225840884306048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 531142994 and 531143012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57469 + ... + 66067.

It is an arithmetic number, because the mean of its divisors is an integer number (35604000).

Almost surely, 2^531143032 is an apocalyptic number.

It is an amenable number.

531143032 is an abundant number, since it is smaller than the sum of its proper divisors (608184968).

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

531143032 is a wasteful number, since it uses less digits than its factorization.

531143032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9715 (or 9711 counting only the distinct ones).

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

The square root of 531143032 is about 23046.5405646921. The cubic root of 531143032 is about 809.8485882713.

Adding to 531143032 its reverse (230341135), we get a palindrome (761484167).

The spelling of 531143032 in words is "five hundred thirty-one million, one hundred forty-three thousand, thirty-two".