136318069 has 2 divisors, whose sum is σ = 136318070. Its totient is φ = 136318068.

The previous prime is 136318051. The next prime is 136318093. The reversal of 136318069 is 960813631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122367844 + 13950225 = 11062^2 + 3735^2 .

It is an emirp because it is prime and its reverse (960813631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136318069 - 2¹⁹ = 135793781 is a prime.

It is a super-2 number, since 2×136318069² = 37165231871777522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136318099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68159034 + 68159035.

It is an arithmetic number, because the mean of its divisors is an integer number (68159035).

Almost surely, 2^136318069 is an apocalyptic number.

It is an amenable number.

136318069 is a deficient number, since it is larger than the sum of its proper divisors (1).

136318069 is an equidigital number, since it uses as much as digits as its factorization.

136318069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 136318069 is about 11675.5329214559. The cubic root of 136318069 is about 514.6569103939.

The spelling of 136318069 in words is "one hundred thirty-six million, three hundred eighteen thousand, sixty-nine".