531156332 has 12 divisors (see below), whose sum is σ = 1062312720. Its totient is φ = 227638416.

The previous prime is 531156331. The next prime is 531156377. The reversal of 531156332 is 233651135.

531156332 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 531156295 and 531156304.

It is not an unprimeable number, because it can be changed into a prime (531156331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9484907 + ... + 9484962.

It is an arithmetic number, because the mean of its divisors is an integer number (88526060).

Almost surely, 2^531156332 is an apocalyptic number.

It is an amenable number.

531156332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

531156332 is a wasteful number, since it uses less digits than its factorization.

531156332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18969880 (or 18969878 counting only the distinct ones).

The product of its digits is 8100, while the sum is 29.

The square root of 531156332 is about 23046.8291094458. The cubic root of 531156332 is about 809.8553478418.

The spelling of 531156332 in words is "five hundred thirty-one million, one hundred fifty-six thousand, three hundred thirty-two".