531432234136 has 8 divisors (see below), whose sum is σ = 996435439020. Its totient is φ = 265716117064.

The previous prime is 531432234097. The next prime is 531432234139. The reversal of 531432234136 is 631432234135.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 531432234095 and 531432234104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531432234139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33214514626 + ... + 33214514641.

Almost surely, 2^531432234136 is an apocalyptic number.

It is an amenable number.

531432234136 is a deficient number, since it is larger than the sum of its proper divisors (465003204884).

531432234136 is a wasteful number, since it uses less digits than its factorization.

531432234136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66429029273 (or 66429029269 counting only the distinct ones).

The product of its digits is 155520, while the sum is 37.

Subtracting 531432234136 from its reverse (631432234135), we obtain a palindrome (99999999999).

The spelling of 531432234136 in words is "five hundred thirty-one billion, four hundred thirty-two million, two hundred thirty-four thousand, one hundred thirty-six".