131824145573 has 4 divisors (see below), whose sum is σ = 132507172428. Its totient is φ = 131141118720.

The previous prime is 131824145569. The next prime is 131824145611. The reversal of 131824145573 is 375541428131.

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 85417076644 + 46407068929 = 292262^2 + 215423^2 .

It is a cyclic number.

It is not a de Polignac number, because 131824145573 - 2² = 131824145569 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 (131824145533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341513138 + ... + 341513523.

It is an arithmetic number, because the mean of its divisors is an integer number (33126793107).

Almost surely, 2^131824145573 is an apocalyptic number.

It is an amenable number.

131824145573 is a deficient number, since it is larger than the sum of its proper divisors (683026855).

131824145573 is an equidigital number, since it uses as much as digits as its factorization.

131824145573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683026854.

The product of its digits is 403200, while the sum is 44.

The spelling of 131824145573 in words is "one hundred thirty-one billion, eight hundred twenty-four million, one hundred forty-five thousand, five hundred seventy-three".