136697069 has 2 divisors, whose sum is σ = 136697070. Its totient is φ = 136697068.

The previous prime is 136697063. The next prime is 136697089. The reversal of 136697069 is 960796631.

It is a happy number.

136697069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115885225 + 20811844 = 10765^2 + 4562^2 .

It is an emirp because it is prime and its reverse (960796631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136697069 - 2⁴ = 136697053 is a prime.

It is a super-2 number, since 2×136697069² = 37372177346381522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136697063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68348534 + 68348535.

It is an arithmetic number, because the mean of its divisors is an integer number (68348535).

Almost surely, 2^136697069 is an apocalyptic number.

It is an amenable number.

136697069 is a deficient number, since it is larger than the sum of its proper divisors (1).

136697069 is an equidigital number, since it uses as much as digits as its factorization.

136697069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 136697069 is about 11691.7521783521. The cubic root of 136697069 is about 515.1334294672.

The spelling of 136697069 in words is "one hundred thirty-six million, six hundred ninety-seven thousand, sixty-nine".