135434309 has 2 divisors, whose sum is σ = 135434310. Its totient is φ = 135434308.

The previous prime is 135434303. The next prime is 135434311. The reversal of 135434309 is 903434531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106543684 + 28890625 = 10322^2 + 5375^2 .

It is a cyclic number.

It is not a de Polignac number, because 135434309 - 2⁴ = 135434293 is a prime.

Together with 135434311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135434303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67717154 + 67717155.

It is an arithmetic number, because the mean of its divisors is an integer number (67717155).

Almost surely, 2^135434309 is an apocalyptic number.

It is an amenable number.

135434309 is a deficient number, since it is larger than the sum of its proper divisors (1).

135434309 is an equidigital number, since it uses as much as digits as its factorization.

135434309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 135434309 is about 11637.6247146916. The cubic root of 135434309 is about 513.5423121224.

The spelling of 135434309 in words is "one hundred thirty-five million, four hundred thirty-four thousand, three hundred nine".