131710539487 has 4 divisors (see below), whose sum is σ = 131717161800. Its totient is φ = 131703917176.

The previous prime is 131710539473. The next prime is 131710539509. The reversal of 131710539487 is 784935017131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131710539487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131710539487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131710530487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3281233 + ... + 3321130.

It is an arithmetic number, because the mean of its divisors is an integer number (32929290450).

Almost surely, 2^131710539487 is an apocalyptic number.

131710539487 is a deficient number, since it is larger than the sum of its proper divisors (6622313).

131710539487 is an equidigital number, since it uses as much as digits as its factorization.

131710539487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622312.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 131710539487 in words is "one hundred thirty-one billion, seven hundred ten million, five hundred thirty-nine thousand, four hundred eighty-seven".