134705689 has 2 divisors, whose sum is σ = 134705690. Its totient is φ = 134705688.

The previous prime is 134705677. The next prime is 134705717. The reversal of 134705689 is 986507431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118984464 + 15721225 = 10908^2 + 3965^2 .

It is a cyclic number.

It is not a de Polignac number, because 134705689 - 2⁷ = 134705561 is a prime.

It is not a weakly prime, because it can be changed into another prime (134775689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67352844 + 67352845.

It is an arithmetic number, because the mean of its divisors is an integer number (67352845).

Almost surely, 2^134705689 is an apocalyptic number.

It is an amenable number.

134705689 is a deficient number, since it is larger than the sum of its proper divisors (1).

134705689 is an equidigital number, since it uses as much as digits as its factorization.

134705689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 134705689 is about 11606.2779994277. The cubic root of 134705689 is about 512.6197240817.

The spelling of 134705689 in words is "one hundred thirty-four million, seven hundred five thousand, six hundred eighty-nine".