135792909 has 32 divisors (see below), whose sum is σ = 230461440. Its totient is φ = 77411376.

The previous prime is 135792883. The next prime is 135792929. The reversal of 135792909 is 909297531.

It is a happy number.

135792909 is a `hidden beast` number, since 1 + 357 + 9 + 290 + 9 = 666.

It is not a de Polignac number, because 135792909 - 2⁷ = 135792781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135792929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139944 + ... + 140910.

It is an arithmetic number, because the mean of its divisors is an integer number (7201920).

Almost surely, 2^135792909 is an apocalyptic number.

It is an amenable number.

135792909 is a deficient number, since it is larger than the sum of its proper divisors (94668531).

135792909 is an equidigital number, since it uses as much as digits as its factorization.

135792909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 135792909 is about 11653.0214536832. The cubic root of 135792909 is about 513.9951613750.

The spelling of 135792909 in words is "one hundred thirty-five million, seven hundred ninety-two thousand, nine hundred nine".