131587575127987 has 16 divisors (see below), whose sum is σ = 146606299310592. Its totient is φ = 117078288570720.

The previous prime is 131587575127963. The next prime is 131587575127991. The reversal of 131587575127987 is 789721575785131.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131587575127987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131587575127787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37890733 + ... + 41217505.

It is an arithmetic number, because the mean of its divisors is an integer number (9162893706912).

Almost surely, 2^{131587575127987} is an apocalyptic number.

131587575127987 is a deficient number, since it is larger than the sum of its proper divisors (15018724182605).

131587575127987 is a wasteful number, since it uses less digits than its factorization.

131587575127987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403338.

The product of its digits is 1037232000, while the sum is 76.

The spelling of 131587575127987 in words is "one hundred thirty-one trillion, five hundred eighty-seven billion, five hundred seventy-five million, one hundred twenty-seven thousand, nine hundred eighty-seven".