136135305 has 24 divisors (see below), whose sum is σ = 237025152. Its totient is φ = 72280224.

The previous prime is 136135297. The next prime is 136135327. The reversal of 136135305 is 503531631.

136135305 is a `hidden beast` number, since 13 + 613 + 5 + 30 + 5 = 666.

It is not a de Polignac number, because 136135305 - 2³ = 136135297 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3552 + ... + 16878.

It is an arithmetic number, because the mean of its divisors is an integer number (9876048).

Almost surely, 2^136135305 is an apocalyptic number.

136135305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136135305 is a deficient number, since it is larger than the sum of its proper divisors (100889847).

136135305 is a wasteful number, since it uses less digits than its factorization.

136135305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13565 (or 13562 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 136135305 is about 11667.7035015465. The cubic root of 136135305 is about 514.4268043782.

Adding to 136135305 its reverse (503531631), we get a palindrome (639666936).

The spelling of 136135305 in words is "one hundred thirty-six million, one hundred thirty-five thousand, three hundred five".