135119609 has 2 divisors, whose sum is σ = 135119610. Its totient is φ = 135119608.

The previous prime is 135119581. The next prime is 135119629. The reversal of 135119609 is 906911531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134629609 + 490000 = 11603^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 135119609 - 2⁸ = 135119353 is a prime.

It is not a weakly prime, because it can be changed into another prime (135119629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67559804 + 67559805.

It is an arithmetic number, because the mean of its divisors is an integer number (67559805).

Almost surely, 2^135119609 is an apocalyptic number.

It is an amenable number.

135119609 is a deficient number, since it is larger than the sum of its proper divisors (1).

135119609 is an equidigital number, since it uses as much as digits as its factorization.

135119609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 135119609 is about 11624.0960508764. The cubic root of 135119609 is about 513.1442418839.

The spelling of 135119609 in words is "one hundred thirty-five million, one hundred nineteen thousand, six hundred nine".