136736289 has 8 divisors (see below), whose sum is σ = 202572320. Its totient is φ = 91157508.

The previous prime is 136736239. The next prime is 136736291. The reversal of 136736289 is 982637631.

136736289 is a `hidden beast` number, since 1 + 367 + 3 + 6 + 289 = 666.

It is not a de Polignac number, because 136736289 - 2²⁷ = 2518561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136736209) 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 7 ways as a sum of consecutive naturals, for example, 2532127 + ... + 2532180.

It is an arithmetic number, because the mean of its divisors is an integer number (25321540).

Almost surely, 2^136736289 is an apocalyptic number.

It is an amenable number.

136736289 is a deficient number, since it is larger than the sum of its proper divisors (65836031).

136736289 is an equidigital number, since it uses as much as digits as its factorization.

136736289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5064316 (or 5064310 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 136736289 is about 11693.4293088042. The cubic root of 136736289 is about 515.1826907068.

The spelling of 136736289 in words is "one hundred thirty-six million, seven hundred thirty-six thousand, two hundred eighty-nine".