131518416481 has 8 divisors (see below), whose sum is σ = 131882778720. Its totient is φ = 131154557952.

The previous prime is 131518416479. The next prime is 131518416559. The reversal of 131518416481 is 184614815131.

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 131518416481 - 2¹ = 131518416479 is a prime.

It is a super-2 number, since 2×131518416481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131518411481) 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, 400026 + ... + 650428.

It is an arithmetic number, because the mean of its divisors is an integer number (16485347340).

Almost surely, 2^131518416481 is an apocalyptic number.

It is an amenable number.

131518416481 is a deficient number, since it is larger than the sum of its proper divisors (364362239).

131518416481 is an equidigital number, since it uses as much as digits as its factorization.

131518416481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251855.

The product of its digits is 92160, while the sum is 43.

The spelling of 131518416481 in words is "one hundred thirty-one billion, five hundred eighteen million, four hundred sixteen thousand, four hundred eighty-one".