136127917 has 2 divisors, whose sum is σ = 136127918. Its totient is φ = 136127916.

The previous prime is 136127911. The next prime is 136127923. The reversal of 136127917 is 719721631.

It is a balanced prime because it is at equal distance from previous prime (136127911) and next prime (136127923).

It can be written as a sum of positive squares in only one way, i.e., 135978921 + 148996 = 11661^2 + 386^2 .

It is an emirp because it is prime and its reverse (719721631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136127917 - 2³ = 136127909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136127911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68063958 + 68063959.

It is an arithmetic number, because the mean of its divisors is an integer number (68063959).

Almost surely, 2^136127917 is an apocalyptic number.

It is an amenable number.

136127917 is a deficient number, since it is larger than the sum of its proper divisors (1).

136127917 is an equidigital number, since it uses as much as digits as its factorization.

136127917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 37.

The square root of 136127917 is about 11667.3868968163. The cubic root of 136127917 is about 514.4174983083.

The spelling of 136127917 in words is "one hundred thirty-six million, one hundred twenty-seven thousand, nine hundred seventeen".