136166917 has 2 divisors, whose sum is σ = 136166918. Its totient is φ = 136166916.

The previous prime is 136166881. The next prime is 136166929. The reversal of 136166917 is 719661631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75933796 + 60233121 = 8714^2 + 7761^2 .

It is a cyclic number.

It is not a de Polignac number, because 136166917 - 2¹¹ = 136164869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136166917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136160917) 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, 68083458 + 68083459.

It is an arithmetic number, because the mean of its divisors is an integer number (68083459).

Almost surely, 2^136166917 is an apocalyptic number.

It is an amenable number.

136166917 is a deficient number, since it is larger than the sum of its proper divisors (1).

136166917 is an equidigital number, since it uses as much as digits as its factorization.

136166917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 136166917 is about 11669.0581025205. The cubic root of 136166917 is about 514.4666196721.

The spelling of 136166917 in words is "one hundred thirty-six million, one hundred sixty-six thousand, nine hundred seventeen".