135041909 has 2 divisors, whose sum is σ = 135041910. Its totient is φ = 135041908.

The previous prime is 135041903. The next prime is 135041927. The reversal of 135041909 is 909140531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114019684 + 21022225 = 10678^2 + 4585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135041909 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 (135041903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67520954 + 67520955.

It is an arithmetic number, because the mean of its divisors is an integer number (67520955).

Almost surely, 2^135041909 is an apocalyptic number.

It is an amenable number.

135041909 is a deficient number, since it is larger than the sum of its proper divisors (1).

135041909 is an equidigital number, since it uses as much as digits as its factorization.

135041909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 135041909 is about 11620.7533748893. The cubic root of 135041909 is about 513.0458624975.

The spelling of 135041909 in words is "one hundred thirty-five million, forty-one thousand, nine hundred nine".