531140454412 has 6 divisors (see below), whose sum is σ = 929495795228. Its totient is φ = 265570227204.

The previous prime is 531140454391. The next prime is 531140454419. The reversal of 531140454412 is 214454041135.

It is a happy number.

It is a super-2 number, since 2×531140454412² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531140454419) 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 as a sum of consecutive naturals, namely, 66392556798 + ... + 66392556805.

Almost surely, 2^531140454412 is an apocalyptic number.

It is an amenable number.

531140454412 is a deficient number, since it is larger than the sum of its proper divisors (398355340816).

531140454412 is a wasteful number, since it uses less digits than its factorization.

531140454412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132785113607 (or 132785113605 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 531140454412 its reverse (214454041135), we get a palindrome (745594495547).

The spelling of 531140454412 in words is "five hundred thirty-one billion, one hundred forty million, four hundred fifty-four thousand, four hundred twelve".