135344009 has 2 divisors, whose sum is σ = 135344010. Its totient is φ = 135344008.

The previous prime is 135343997. The next prime is 135344023. The reversal of 135344009 is 900443531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132894784 + 2449225 = 11528^2 + 1565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135344009 is a prime.

It is not a weakly prime, because it can be changed into another prime (135344059) 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, 67672004 + 67672005.

It is an arithmetic number, because the mean of its divisors is an integer number (67672005).

Almost surely, 2^135344009 is an apocalyptic number.

It is an amenable number.

135344009 is a deficient number, since it is larger than the sum of its proper divisors (1).

135344009 is an equidigital number, since it uses as much as digits as its factorization.

135344009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 135344009 is about 11633.7444101201. The cubic root of 135344009 is about 513.4281530116.

The spelling of 135344009 in words is "one hundred thirty-five million, three hundred forty-four thousand, nine".