136284289 has 2 divisors, whose sum is σ = 136284290. Its totient is φ = 136284288.

The previous prime is 136284259. The next prime is 136284301. The reversal of 136284289 is 982482631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129208689 + 7075600 = 11367^2 + 2660^2 .

It is a cyclic number.

It is not a de Polignac number, because 136284289 - 2¹¹ = 136282241 is a prime.

It is not a weakly prime, because it can be changed into another prime (136284229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68142144 + 68142145.

It is an arithmetic number, because the mean of its divisors is an integer number (68142145).

Almost surely, 2^136284289 is an apocalyptic number.

It is an amenable number.

136284289 is a deficient number, since it is larger than the sum of its proper divisors (1).

136284289 is an equidigital number, since it uses as much as digits as its factorization.

136284289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 43.

The square root of 136284289 is about 11674.0862169165. The cubic root of 136284289 is about 514.6143957398.

The spelling of 136284289 in words is "one hundred thirty-six million, two hundred eighty-four thousand, two hundred eighty-nine".