531126412 has 6 divisors (see below), whose sum is σ = 929471228. Its totient is φ = 265563204.

The previous prime is 531126403. The next prime is 531126413. The reversal of 531126412 is 214621135.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (531126413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66390798 + ... + 66390805.

Almost surely, 2^531126412 is an apocalyptic number.

It is an amenable number.

531126412 is a deficient number, since it is larger than the sum of its proper divisors (398344816).

531126412 is a wasteful number, since it uses less digits than its factorization.

531126412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132781607 (or 132781605 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 531126412 is about 23046.1799871475. The cubic root of 531126412 is about 809.8401411908.

Adding to 531126412 its reverse (214621135), we get a palindrome (745747547).

The spelling of 531126412 in words is "five hundred thirty-one million, one hundred twenty-six thousand, four hundred twelve".