531326043 has 24 divisors (see below), whose sum is σ = 784508816. Its totient is φ = 346420800.

The previous prime is 531326039. The next prime is 531326057. The reversal of 531326043 is 340623135.

It is a happy number.

531326043 is a `hidden beast` number, since 53 + 1 + 3 + 2 + 604 + 3 = 666.

It is not a de Polignac number, because 531326043 - 2² = 531326039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531325998 and 531326016.

It is not an unprimeable number, because it can be changed into a prime (531326083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96696 + ... + 102042.

Almost surely, 2^531326043 is an apocalyptic number.

531326043 is a deficient number, since it is larger than the sum of its proper divisors (253182773).

531326043 is a wasteful number, since it uses less digits than its factorization.

531326043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595 (or 5592 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 531326043 is about 23050.5106884858. The cubic root of 531326043 is about 809.9415915816.

Adding to 531326043 its reverse (340623135), we get a palindrome (871949178).

The spelling of 531326043 in words is "five hundred thirty-one million, three hundred twenty-six thousand, forty-three".