131548783297 has 4 divisors (see below), whose sum is σ = 131603758020. Its totient is φ = 131493808576.

The previous prime is 131548783183. The next prime is 131548783307. The reversal of 131548783297 is 792387845131.

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 10916906256 + 120631877041 = 104484^2 + 347321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131548783297 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131548783997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27483772 + ... + 27488557.

It is an arithmetic number, because the mean of its divisors is an integer number (32900939505).

Almost surely, 2^131548783297 is an apocalyptic number.

It is an amenable number.

131548783297 is a deficient number, since it is larger than the sum of its proper divisors (54974723).

131548783297 is an equidigital number, since it uses as much as digits as its factorization.

131548783297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54974722.

The product of its digits is 10160640, while the sum is 58.

The spelling of 131548783297 in words is "one hundred thirty-one billion, five hundred forty-eight million, seven hundred eighty-three thousand, two hundred ninety-seven".