131440434524 has 12 divisors (see below), whose sum is σ = 262880869104. Its totient is φ = 56331614784.

The previous prime is 131440434491. The next prime is 131440434529. The reversal of 131440434524 is 425434044131.

It is a happy number.

131440434524 is an admirable number.

It is a super-2 number, since 2×131440434524² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131440434529) 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 in 3 ways as a sum of consecutive naturals, for example, 2347150589 + ... + 2347150644.

It is an arithmetic number, because the mean of its divisors is an integer number (21906739092).

Almost surely, 2^131440434524 is an apocalyptic number.

131440434524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131440434524 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131440434524 is a wasteful number, since it uses less digits than its factorization.

131440434524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694301244 (or 4694301242 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 131440434524 its reverse (425434044131), we get a palindrome (556874478655).

The spelling of 131440434524 in words is "one hundred thirty-one billion, four hundred forty million, four hundred thirty-four thousand, five hundred twenty-four".