136205442349 has 2 divisors, whose sum is σ = 136205442350. Its totient is φ = 136205442348.

The previous prime is 136205442301. The next prime is 136205442353. The reversal of 136205442349 is 943244502631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122129280900 + 14076161449 = 349470^2 + 118643^2 .

It is a cyclic number.

It is not a de Polignac number, because 136205442349 - 2²⁷ = 136071224621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136205442379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68102721174 + 68102721175.

It is an arithmetic number, because the mean of its divisors is an integer number (68102721175).

Almost surely, 2^136205442349 is an apocalyptic number.

It is an amenable number.

136205442349 is a deficient number, since it is larger than the sum of its proper divisors (1).

136205442349 is an equidigital number, since it uses as much as digits as its factorization.

136205442349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 136205442349 in words is "one hundred thirty-six billion, two hundred five million, four hundred forty-two thousand, three hundred forty-nine".