131332521542477 has 2 divisors, whose sum is σ = 131332521542478. Its totient is φ = 131332521542476.

The previous prime is 131332521542471. The next prime is 131332521542507. The reversal of 131332521542477 is 774245125233131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112532761557316 + 18799759985161 = 10608146^2 + 4335869^2 .

It is a cyclic number.

It is not a de Polignac number, because 131332521542477 - 2¹⁸ = 131332521280333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131332521542471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666260771238 + 65666260771239.

It is an arithmetic number, because the mean of its divisors is an integer number (65666260771239).

Almost surely, 2^{131332521542477} is an apocalyptic number.

It is an amenable number.

131332521542477 is a deficient number, since it is larger than the sum of its proper divisors (1).

131332521542477 is an equidigital number, since it uses as much as digits as its factorization.

131332521542477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4233600, while the sum is 50.

The spelling of 131332521542477 in words is "one hundred thirty-one trillion, three hundred thirty-two billion, five hundred twenty-one million, five hundred forty-two thousand, four hundred seventy-seven".