136797239 has 2 divisors, whose sum is σ = 136797240. Its totient is φ = 136797238.

The previous prime is 136797211. The next prime is 136797247. The reversal of 136797239 is 932797631.

It is a happy number.

136797239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (932797631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136797239 - 2⁸ = 136796983 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 136797193 and 136797202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136797139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68398619 + 68398620.

It is an arithmetic number, because the mean of its divisors is an integer number (68398620).

Almost surely, 2^136797239 is an apocalyptic number.

136797239 is a deficient number, since it is larger than the sum of its proper divisors (1).

136797239 is an equidigital number, since it uses as much as digits as its factorization.

136797239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 428652, while the sum is 47.

The square root of 136797239 is about 11696.0351829156. The cubic root of 136797239 is about 515.2592266453.

The spelling of 136797239 in words is "one hundred thirty-six million, seven hundred ninety-seven thousand, two hundred thirty-nine".