136224839 has 2 divisors, whose sum is σ = 136224840. Its totient is φ = 136224838.

The previous prime is 136224811. The next prime is 136224841. The reversal of 136224839 is 938422631.

It is a strong prime.

It is an emirp because it is prime and its reverse (938422631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136224839 - 2²⁰ = 135176263 is a prime.

Together with 136224841, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136214839) 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, 68112419 + 68112420.

It is an arithmetic number, because the mean of its divisors is an integer number (68112420).

Almost surely, 2^136224839 is an apocalyptic number.

136224839 is a deficient number, since it is larger than the sum of its proper divisors (1).

136224839 is an equidigital number, since it uses as much as digits as its factorization.

136224839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 136224839 is about 11671.5397013419. The cubic root of 136224839 is about 514.5395564078.

The spelling of 136224839 in words is "one hundred thirty-six million, two hundred twenty-four thousand, eight hundred thirty-nine".