136091565 has 24 divisors (see below), whose sum is σ = 236684448. Its totient is φ = 72338400.

The previous prime is 136091561. The next prime is 136091573. The reversal of 136091565 is 565190631.

136091565 is a `hidden beast` number, since 1 + 3 + 6 + 0 + 91 + 565 = 666.

136091565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136091565 - 2² = 136091561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136091561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8890 + ... + 18740.

It is an arithmetic number, because the mean of its divisors is an integer number (9861852).

Almost surely, 2^136091565 is an apocalyptic number.

136091565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136091565 is a deficient number, since it is larger than the sum of its proper divisors (100592883).

136091565 is a wasteful number, since it uses less digits than its factorization.

136091565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10169 (or 10166 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 136091565 is about 11665.8289461144. The cubic root of 136091565 is about 514.3717037102.

The spelling of 136091565 in words is "one hundred thirty-six million, ninety-one thousand, five hundred sixty-five".