134066689 has 2 divisors, whose sum is σ = 134066690. Its totient is φ = 134066688.

The previous prime is 134066687. The next prime is 134066711. The reversal of 134066689 is 986660431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118919025 + 15147664 = 10905^2 + 3892^2 .

It is an emirp because it is prime and its reverse (986660431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134066689 - 2¹ = 134066687 is a prime.

Together with 134066687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (134066683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67033344 + 67033345.

It is an arithmetic number, because the mean of its divisors is an integer number (67033345).

Almost surely, 2^134066689 is an apocalyptic number.

It is an amenable number.

134066689 is a deficient number, since it is larger than the sum of its proper divisors (1).

134066689 is an equidigital number, since it uses as much as digits as its factorization.

134066689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 134066689 is about 11578.7170705567. The cubic root of 134066689 is about 511.8078718928.

The spelling of 134066689 in words is "one hundred thirty-four million, sixty-six thousand, six hundred eighty-nine".