136194329 has 2 divisors, whose sum is σ = 136194330. Its totient is φ = 136194328.

The previous prime is 136194283. The next prime is 136194379. The reversal of 136194329 is 923491631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89340304 + 46854025 = 9452^2 + 6845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136194329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 136194292 and 136194301.

It is not a weakly prime, because it can be changed into another prime (136194379) 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, 68097164 + 68097165.

It is an arithmetic number, because the mean of its divisors is an integer number (68097165).

Almost surely, 2^136194329 is an apocalyptic number.

It is an amenable number.

136194329 is a deficient number, since it is larger than the sum of its proper divisors (1).

136194329 is an equidigital number, since it uses as much as digits as its factorization.

136194329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 38.

The square root of 136194329 is about 11670.2326026519. The cubic root of 136194329 is about 514.5011400805.

The spelling of 136194329 in words is "one hundred thirty-six million, one hundred ninety-four thousand, three hundred twenty-nine".