136807943 has 2 divisors, whose sum is σ = 136807944. Its totient is φ = 136807942.

The previous prime is 136807921. The next prime is 136807949. The reversal of 136807943 is 349708631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136807943 - 2¹⁰ = 136806919 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136807943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136807949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68403971 + 68403972.

It is an arithmetic number, because the mean of its divisors is an integer number (68403972).

Almost surely, 2^136807943 is an apocalyptic number.

136807943 is a deficient number, since it is larger than the sum of its proper divisors (1).

136807943 is an equidigital number, since it uses as much as digits as its factorization.

136807943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 136807943 is about 11696.4927649274. The cubic root of 136807943 is about 515.2726654909.

The spelling of 136807943 in words is "one hundred thirty-six million, eight hundred seven thousand, nine hundred forty-three".