134789 has 2 divisors, whose sum is σ = 134790.
Its totient is φ = 134788.
The previous prime is 134777. The next prime is 134807. The reversal of 134789 is 987431.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 134689 + 100 = 367^2 + 10^2
It is a cyclic number.
It is not a de Polignac number, because 134789 - 212 = 130693 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is a plaindrome in base 10.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (134089) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67394 + 67395.
It is an arithmetic number, because the mean of its divisors is an integer number (67395).
2134789 is an apocalyptic number.
It is an amenable number.
134789 is a deficient number, since it is larger than the sum of its proper divisors (1).
134789 is an equidigital number, since it uses as much as digits as its factorization.
134789 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 6048, while the sum is 32.
The square root of 134789 is about 367.1362145036.
The cubic root of 134789 is about 51.2725381734.
The spelling of 134789 in words is "one hundred thirty-four thousand, seven hundred eighty-nine".