131593539287 has 4 divisors (see below), whose sum is σ = 150392616336. Its totient is φ = 112794462240.

The previous prime is 131593539247. The next prime is 131593539323. The reversal of 131593539287 is 782935395131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782935395131 = 17 ⋅46055023243.

It is a cyclic number.

It is not a de Polignac number, because 131593539287 - 2¹⁶ = 131593473751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131593539247) 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, 9399538514 + ... + 9399538527.

It is an arithmetic number, because the mean of its divisors is an integer number (37598154084).

Almost surely, 2^131593539287 is an apocalyptic number.

131593539287 is a deficient number, since it is larger than the sum of its proper divisors (18799077049).

131593539287 is an equidigital number, since it uses as much as digits as its factorization.

131593539287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18799077048.

The product of its digits is 6123600, while the sum is 56.

The spelling of 131593539287 in words is "one hundred thirty-one billion, five hundred ninety-three million, five hundred thirty-nine thousand, two hundred eighty-seven".