131313086537 has 2 divisors, whose sum is σ = 131313086538. Its totient is φ = 131313086536.

The previous prime is 131313086503. The next prime is 131313086557. The reversal of 131313086537 is 735680313131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131301870736 + 11215801 = 362356^2 + 3349^2 .

It is an emirp because it is prime and its reverse (735680313131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131313086537 - 2¹⁴ = 131313070153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131313086494 and 131313086503.

It is not a weakly prime, because it can be changed into another prime (131313086557) 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, 65656543268 + 65656543269.

It is an arithmetic number, because the mean of its divisors is an integer number (65656543269).

Almost surely, 2^131313086537 is an apocalyptic number.

It is an amenable number.

131313086537 is a deficient number, since it is larger than the sum of its proper divisors (1).

131313086537 is an equidigital number, since it uses as much as digits as its factorization.

131313086537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

Adding to 131313086537 its reverse (735680313131), we get a palindrome (866993399668).

The spelling of 131313086537 in words is "one hundred thirty-one billion, three hundred thirteen million, eighty-six thousand, five hundred thirty-seven".