136212617 has 2 divisors, whose sum is σ = 136212618. Its totient is φ = 136212616.

The previous prime is 136212611. The next prime is 136212641. The reversal of 136212617 is 716212631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128572921 + 7639696 = 11339^2 + 2764^2 .

It is an emirp because it is prime and its reverse (716212631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136212617 - 2⁸ = 136212361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136212617.

It is not a weakly prime, because it can be changed into another prime (136212611) 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, 68106308 + 68106309.

It is an arithmetic number, because the mean of its divisors is an integer number (68106309).

Almost surely, 2^136212617 is an apocalyptic number.

It is an amenable number.

136212617 is a deficient number, since it is larger than the sum of its proper divisors (1).

136212617 is an equidigital number, since it uses as much as digits as its factorization.

136212617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 136212617 is about 11671.0161082915. The cubic root of 136212617 is about 514.5241679011.

The spelling of 136212617 in words is "one hundred thirty-six million, two hundred twelve thousand, six hundred seventeen".