131445063017 has 4 divisors (see below), whose sum is σ = 131446216020. Its totient is φ = 131443910016.

The previous prime is 131445063011. The next prime is 131445063041. The reversal of 131445063017 is 710360544131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 710360544131 = 7 ⋅101480077733.

It can be written as a sum of positive squares in 2 ways, for example, as 30674369881 + 100770693136 = 175141^2 + 317444^2 .

It is a cyclic number.

It is not a de Polignac number, because 131445063017 - 2²⁴ = 131428285801 is a prime.

It is a super-2 number, since 2×131445063017² (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 (131445063011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384092 + ... + 640637.

It is an arithmetic number, because the mean of its divisors is an integer number (32861554005).

Almost surely, 2^131445063017 is an apocalyptic number.

It is an amenable number.

131445063017 is a deficient number, since it is larger than the sum of its proper divisors (1153003).

131445063017 is a wasteful number, since it uses less digits than its factorization.

131445063017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153002.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 131445063017 in words is "one hundred thirty-one billion, four hundred forty-five million, sixty-three thousand, seventeen".