531813124 has 6 divisors (see below), whose sum is σ = 930672974. Its totient is φ = 265906560.

The previous prime is 531813119. The next prime is 531813133. The reversal of 531813124 is 421318135.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 416894724 + 114918400 = 20418^2 + 10720^2 .

It is a junction number, because it is equal to n+sod(n) for n = 531813092 and 531813101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66476637 + ... + 66476644.

Almost surely, 2^531813124 is an apocalyptic number.

It is an amenable number.

531813124 is a deficient number, since it is larger than the sum of its proper divisors (398859850).

531813124 is a wasteful number, since it uses less digits than its factorization.

531813124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132953285 (or 132953283 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 531813124 is about 23061.0737824586. The cubic root of 531813124 is about 810.1890144683.

The spelling of 531813124 in words is "five hundred thirty-one million, eight hundred thirteen thousand, one hundred twenty-four".