131333694169 has 2 divisors, whose sum is σ = 131333694170. Its totient is φ = 131333694168.

The previous prime is 131333694113. The next prime is 131333694181. The reversal of 131333694169 is 961496333131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115863309769 + 15470384400 = 340387^2 + 124380^2 .

It is a cyclic number.

It is not a de Polignac number, because 131333694169 - 2²⁹ = 130796823257 is a prime.

It is a super-2 number, since 2×131333694169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131333694199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666847084 + 65666847085.

It is an arithmetic number, because the mean of its divisors is an integer number (65666847085).

Almost surely, 2^131333694169 is an apocalyptic number.

It is an amenable number.

131333694169 is a deficient number, since it is larger than the sum of its proper divisors (1).

131333694169 is an equidigital number, since it uses as much as digits as its factorization.

131333694169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 944784, while the sum is 49.

The spelling of 131333694169 in words is "one hundred thirty-one billion, three hundred thirty-three million, six hundred ninety-four thousand, one hundred sixty-nine".