134768009 has 2 divisors, whose sum is σ = 134768010. Its totient is φ = 134768008.

The previous prime is 134767999. The next prime is 134768033. The reversal of 134768009 is 900867431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113635600 + 21132409 = 10660^2 + 4597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134768009 is a prime.

It is not a weakly prime, because it can be changed into another prime (134768069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67384004 + 67384005.

It is an arithmetic number, because the mean of its divisors is an integer number (67384005).

Almost surely, 2^134768009 is an apocalyptic number.

It is an amenable number.

134768009 is a deficient number, since it is larger than the sum of its proper divisors (1).

134768009 is an equidigital number, since it uses as much as digits as its factorization.

134768009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 134768009 is about 11608.9624428715. The cubic root of 134768009 is about 512.6987643859.

The spelling of 134768009 in words is "one hundred thirty-four million, seven hundred sixty-eight thousand, nine".