131340735637 has 8 divisors (see below), whose sum is σ = 132622954200. Its totient is φ = 130063206144.

The previous prime is 131340735601. The next prime is 131340735649. The reversal of 131340735637 is 736537043131.

It can be written as a sum of positive squares in 4 ways, for example, as 13997492721 + 117343242916 = 118311^2 + 342554^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131340735637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131340735593 and 131340735602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131340735437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115962 + ... + 1228027.

It is an arithmetic number, because the mean of its divisors is an integer number (16577869275).

Almost surely, 2^131340735637 is an apocalyptic number.

It is an amenable number.

131340735637 is a deficient number, since it is larger than the sum of its proper divisors (1282218563).

131340735637 is a wasteful number, since it uses less digits than its factorization.

131340735637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344535.

The product of its (nonzero) digits is 476280, while the sum is 43.

Adding to 131340735637 its reverse (736537043131), we get a palindrome (867877778768).

The spelling of 131340735637 in words is "one hundred thirty-one billion, three hundred forty million, seven hundred thirty-five thousand, six hundred thirty-seven".