131236262137 has 2 divisors, whose sum is σ = 131236262138. Its totient is φ = 131236262136.

The previous prime is 131236262119. The next prime is 131236262149. The reversal of 131236262137 is 731262632131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102592730601 + 28643531536 = 320301^2 + 169244^2 .

It is an emirp because it is prime and its reverse (731262632131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131236262137 - 2¹⁹ = 131235737849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131236262096 and 131236262105.

It is not a weakly prime, because it can be changed into another prime (131236262107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65618131068 + 65618131069.

It is an arithmetic number, because the mean of its divisors is an integer number (65618131069).

Almost surely, 2^131236262137 is an apocalyptic number.

It is an amenable number.

131236262137 is a deficient number, since it is larger than the sum of its proper divisors (1).

131236262137 is an equidigital number, since it uses as much as digits as its factorization.

131236262137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

Adding to 131236262137 its reverse (731262632131), we get a palindrome (862498894268).

The spelling of 131236262137 in words is "one hundred thirty-one billion, two hundred thirty-six million, two hundred sixty-two thousand, one hundred thirty-seven".