136605265 has 16 divisors (see below), whose sum is σ = 169728768. Its totient is φ = 105480576.

The previous prime is 136605263. The next prime is 136605289. The reversal of 136605265 is 562506631.

It is a cyclic number.

It is not a de Polignac number, because 136605265 - 2¹ = 136605263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136605265.

It is not an unprimeable number, because it can be changed into a prime (136605263) 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 15 ways as a sum of consecutive naturals, for example, 13174 + ... + 21136.

It is an arithmetic number, because the mean of its divisors is an integer number (10608048).

Almost surely, 2^136605265 is an apocalyptic number.

It is an amenable number.

136605265 is a deficient number, since it is larger than the sum of its proper divisors (33123503).

136605265 is an equidigital number, since it uses as much as digits as its factorization.

136605265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8088.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 136605265 is about 11687.8255034887. The cubic root of 136605265 is about 515.0180846384.

The spelling of 136605265 in words is "one hundred thirty-six million, six hundred five thousand, two hundred sixty-five".