136736605 has 8 divisors (see below), whose sum is σ = 165033432. Its totient is φ = 108756288.

The previous prime is 136736581. The next prime is 136736609. The reversal of 136736605 is 506637631.

It can be written as a sum of positive squares in 4 ways, for example, as 29365561 + 107371044 = 5419^2 + 10362^2 .

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 136736605 - 2¹¹ = 136734557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136736609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78174 + ... + 79903.

It is an arithmetic number, because the mean of its divisors is an integer number (20629179).

Almost surely, 2^136736605 is an apocalyptic number.

It is an amenable number.

136736605 is a deficient number, since it is larger than the sum of its proper divisors (28296827).

136736605 is a wasteful number, since it uses less digits than its factorization.

136736605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158255.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 136736605 is about 11693.4428206581. The cubic root of 136736605 is about 515.1830875720.

The spelling of 136736605 in words is "one hundred thirty-six million, seven hundred thirty-six thousand, six hundred five".