131406324536 has 32 divisors (see below), whose sum is σ = 259436822400. Its totient is φ = 62225364960.

The previous prime is 131406324529. The next prime is 131406324601. The reversal of 131406324536 is 635423604131.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 131406324536.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349571 + ... + 620493.

It is an arithmetic number, because the mean of its divisors is an integer number (8107400700).

Almost surely, 2^131406324536 is an apocalyptic number.

It is an amenable number.

131406324536 is a deficient number, since it is larger than the sum of its proper divisors (128030497864).

131406324536 is a wasteful number, since it uses less digits than its factorization.

131406324536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274139 (or 274135 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 131406324536 its reverse (635423604131), we get a palindrome (766829928667).

The spelling of 131406324536 in words is "one hundred thirty-one billion, four hundred six million, three hundred twenty-four thousand, five hundred thirty-six".