531151432 has 16 divisors (see below), whose sum is σ = 1138181760. Its totient is φ = 227636304.

The previous prime is 531151399. The next prime is 531151447. The reversal of 531151432 is 234151135.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 531151397 and 531151406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4742368 + ... + 4742479.

It is an arithmetic number, because the mean of its divisors is an integer number (71136360).

Almost surely, 2^531151432 is an apocalyptic number.

It is an amenable number.

531151432 is an abundant number, since it is smaller than the sum of its proper divisors (607030328).

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

531151432 is a wasteful number, since it uses less digits than its factorization.

531151432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9484860 (or 9484856 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 531151432 is about 23046.7228039042. The cubic root of 531151432 is about 809.8528574869.

The spelling of 531151432 in words is "five hundred thirty-one million, one hundred fifty-one thousand, four hundred thirty-two".