136289269 has 2 divisors, whose sum is σ = 136289270. Its totient is φ = 136289268.

The previous prime is 136289267. The next prime is 136289281. The reversal of 136289269 is 962982631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75916369 + 60372900 = 8713^2 + 7770^2 .

It is a cyclic number.

It is not a de Polignac number, because 136289269 - 2¹ = 136289267 is a prime.

It is a super-2 number, since 2×136289269² = 37149529689108722, which contains 22 as substring.

Together with 136289267, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136289267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68144634 + 68144635.

It is an arithmetic number, because the mean of its divisors is an integer number (68144635).

Almost surely, 2^136289269 is an apocalyptic number.

It is an amenable number.

136289269 is a deficient number, since it is larger than the sum of its proper divisors (1).

136289269 is an equidigital number, since it uses as much as digits as its factorization.

136289269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 46.

The square root of 136289269 is about 11674.2995078934. The cubic root of 136289269 is about 514.6206638834.

The spelling of 136289269 in words is "one hundred thirty-six million, two hundred eighty-nine thousand, two hundred sixty-nine".