135734909 has 4 divisors (see below), whose sum is σ = 135869916. Its totient is φ = 135599904.

The previous prime is 135734903. The next prime is 135734923. The reversal of 135734909 is 909437531.

135734909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18619225 + 117115684 = 4315^2 + 10822^2 .

It is a cyclic number.

It is not a de Polignac number, because 135734909 - 2⁸ = 135734653 is a prime.

It is a super-3 number, since 3×135734909³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135734903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65984 + ... + 68009.

It is an arithmetic number, because the mean of its divisors is an integer number (33967479).

Almost surely, 2^135734909 is an apocalyptic number.

It is an amenable number.

135734909 is a deficient number, since it is larger than the sum of its proper divisors (135007).

135734909 is a wasteful number, since it uses less digits than its factorization.

135734909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135006.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 135734909 is about 11650.5325629346. The cubic root of 135734909 is about 513.9219715818.

The spelling of 135734909 in words is "one hundred thirty-five million, seven hundred thirty-four thousand, nine hundred nine".