135025509 has 8 divisors (see below), whose sum is σ = 190624320. Its totient is φ = 84721856.

The previous prime is 135025489. The next prime is 135025519. The reversal of 135025509 is 905520531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135025509 - 2⁹ = 135024997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135025519) 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 in 7 ways as a sum of consecutive naturals, for example, 1323729 + ... + 1323830.

It is an arithmetic number, because the mean of its divisors is an integer number (23828040).

Almost surely, 2^135025509 is an apocalyptic number.

It is an amenable number.

135025509 is a deficient number, since it is larger than the sum of its proper divisors (55598811).

135025509 is a wasteful number, since it uses less digits than its factorization.

135025509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647579.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 135025509 is about 11620.0477193512. The cubic root of 135025509 is about 513.0250929136.

The spelling of 135025509 in words is "one hundred thirty-five million, twenty-five thousand, five hundred nine".