134643126169 has 2 divisors, whose sum is σ = 134643126170. Its totient is φ = 134643126168.

The previous prime is 134643126157. The next prime is 134643126173. The reversal of 134643126169 is 961621346431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133964784144 + 678342025 = 366012^2 + 26045^2 .

It is a cyclic number.

It is not a de Polignac number, because 134643126169 - 2⁹ = 134643125657 is a prime.

It is a super-2 number, since 2×134643126169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134643126139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67321563084 + 67321563085.

It is an arithmetic number, because the mean of its divisors is an integer number (67321563085).

Almost surely, 2^134643126169 is an apocalyptic number.

It is an amenable number.

134643126169 is a deficient number, since it is larger than the sum of its proper divisors (1).

134643126169 is an equidigital number, since it uses as much as digits as its factorization.

134643126169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 46.

The spelling of 134643126169 in words is "one hundred thirty-four billion, six hundred forty-three million, one hundred twenty-six thousand, one hundred sixty-nine".