136943207 has 2 divisors, whose sum is σ = 136943208. Its totient is φ = 136943206.

The previous prime is 136943161. The next prime is 136943263. The reversal of 136943207 is 702349631.

It is a weak prime.

It is an emirp because it is prime and its reverse (702349631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136943207 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136943707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68471603 + 68471604.

It is an arithmetic number, because the mean of its divisors is an integer number (68471604).

Almost surely, 2^136943207 is an apocalyptic number.

136943207 is a deficient number, since it is larger than the sum of its proper divisors (1).

136943207 is an equidigital number, since it uses as much as digits as its factorization.

136943207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 136943207 is about 11702.2735825138. The cubic root of 136943207 is about 515.4424287431.

The spelling of 136943207 in words is "one hundred thirty-six million, nine hundred forty-three thousand, two hundred seven".