136594243 has 2 divisors, whose sum is σ = 136594244. Its totient is φ = 136594242.

The previous prime is 136594229. The next prime is 136594259. The reversal of 136594243 is 342495631.

It is a weak prime.

It is an emirp because it is prime and its reverse (342495631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136594243 is a prime.

It is not a weakly prime, because it can be changed into another prime (136592243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68297121 + 68297122.

It is an arithmetic number, because the mean of its divisors is an integer number (68297122).

Almost surely, 2^136594243 is an apocalyptic number.

136594243 is a deficient number, since it is larger than the sum of its proper divisors (1).

136594243 is an equidigital number, since it uses as much as digits as its factorization.

136594243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 37.

The square root of 136594243 is about 11687.3539776974. The cubic root of 136594243 is about 515.0042328492.

The spelling of 136594243 in words is "one hundred thirty-six million, five hundred ninety-four thousand, two hundred forty-three".