131562386873 has 2 divisors, whose sum is σ = 131562386874. Its totient is φ = 131562386872.

The previous prime is 131562386867. The next prime is 131562386897. The reversal of 131562386873 is 378683265131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69415387024 + 62146999849 = 263468^2 + 249293^2 .

It is a cyclic number.

It is not a de Polignac number, because 131562386873 - 2⁸ = 131562386617 is a prime.

It is not a weakly prime, because it can be changed into another prime (131562386173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65781193436 + 65781193437.

It is an arithmetic number, because the mean of its divisors is an integer number (65781193437).

Almost surely, 2^131562386873 is an apocalyptic number.

It is an amenable number.

131562386873 is a deficient number, since it is larger than the sum of its proper divisors (1).

131562386873 is an equidigital number, since it uses as much as digits as its factorization.

131562386873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 53.

The spelling of 131562386873 in words is "one hundred thirty-one billion, five hundred sixty-two million, three hundred eighty-six thousand, eight hundred seventy-three".