131517336473 has 4 divisors (see below), whose sum is σ = 131525629620. Its totient is φ = 131509043328.

The previous prime is 131517336439. The next prime is 131517336491. The reversal of 131517336473 is 374633715131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53658479449 + 77858857024 = 231643^2 + 279032^2 .

It is a cyclic number.

It is not a de Polignac number, because 131517336473 - 2⁸ = 131517336217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131517336073) 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, 4122740 + ... + 4154517.

It is an arithmetic number, because the mean of its divisors is an integer number (32881407405).

Almost surely, 2^131517336473 is an apocalyptic number.

It is an amenable number.

131517336473 is a deficient number, since it is larger than the sum of its proper divisors (8293147).

131517336473 is an equidigital number, since it uses as much as digits as its factorization.

131517336473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8293146.

The product of its digits is 476280, while the sum is 44.

The spelling of 131517336473 in words is "one hundred thirty-one billion, five hundred seventeen million, three hundred thirty-six thousand, four hundred seventy-three".