131745823487 has 8 divisors (see below), whose sum is σ = 132089045760. Its totient is φ = 131402739160.

The previous prime is 131745823477. The next prime is 131745823537. The reversal of 131745823487 is 784328547131.

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

It is a cyclic number.

It is not a de Polignac number, because 131745823487 - 2²⁰ = 131744774911 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 (131745823477) 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, 2039312 + ... + 2102922.

It is an arithmetic number, because the mean of its divisors is an integer number (16511130720).

Almost surely, 2^131745823487 is an apocalyptic number.

131745823487 is a deficient number, since it is larger than the sum of its proper divisors (343222273).

131745823487 is an equidigital number, since it uses as much as digits as its factorization.

131745823487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68973.

The product of its digits is 4515840, while the sum is 53.

The spelling of 131745823487 in words is "one hundred thirty-one billion, seven hundred forty-five million, eight hundred twenty-three thousand, four hundred eighty-seven".