134608909 has 2 divisors, whose sum is σ = 134608910. Its totient is φ = 134608908.

The previous prime is 134608891. The next prime is 134608933. The reversal of 134608909 is 909806431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105124009 + 29484900 = 10253^2 + 5430^2 .

It is a cyclic number.

It is not a de Polignac number, because 134608909 - 2¹¹ = 134606861 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134608979) 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, 67304454 + 67304455.

It is an arithmetic number, because the mean of its divisors is an integer number (67304455).

Almost surely, 2^134608909 is an apocalyptic number.

It is an amenable number.

134608909 is a deficient number, since it is larger than the sum of its proper divisors (1).

134608909 is an equidigital number, since it uses as much as digits as its factorization.

134608909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 134608909 is about 11602.1079550227. The cubic root of 134608909 is about 512.4969299043.

The spelling of 134608909 in words is "one hundred thirty-four million, six hundred eight thousand, nine hundred nine".