131279488237 has 2 divisors, whose sum is σ = 131279488238. Its totient is φ = 131279488236.

The previous prime is 131279488201. The next prime is 131279488313. The reversal of 131279488237 is 732884972131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118019044521 + 13260443716 = 343539^2 + 115154^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131279488237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131279488337) 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 as a sum of consecutive naturals, namely, 65639744118 + 65639744119.

It is an arithmetic number, because the mean of its divisors is an integer number (65639744119).

Almost surely, 2^131279488237 is an apocalyptic number.

It is an amenable number.

131279488237 is a deficient number, since it is larger than the sum of its proper divisors (1).

131279488237 is an equidigital number, since it uses as much as digits as its factorization.

131279488237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 55.

The spelling of 131279488237 in words is "one hundred thirty-one billion, two hundred seventy-nine million, four hundred eighty-eight thousand, two hundred thirty-seven".