131583864613 has 2 divisors, whose sum is σ = 131583864614. Its totient is φ = 131583864612.

The previous prime is 131583864569. The next prime is 131583864653. The reversal of 131583864613 is 316468385131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118076078884 + 13507785729 = 343622^2 + 116223^2 .

It is a cyclic number.

It is not a de Polignac number, because 131583864613 - 2¹³ = 131583856421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131583864653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65791932306 + 65791932307.

It is an arithmetic number, because the mean of its divisors is an integer number (65791932307).

Almost surely, 2^131583864613 is an apocalyptic number.

It is an amenable number.

131583864613 is a deficient number, since it is larger than the sum of its proper divisors (1).

131583864613 is an equidigital number, since it uses as much as digits as its factorization.

131583864613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 49.

The spelling of 131583864613 in words is "one hundred thirty-one billion, five hundred eighty-three million, eight hundred sixty-four thousand, six hundred thirteen".