135968117 has 2 divisors, whose sum is σ = 135968118. Its totient is φ = 135968116.

The previous prime is 135968099. The next prime is 135968141. The reversal of 135968117 is 711869531.

135968117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85359121 + 50608996 = 9239^2 + 7114^2 .

It is a cyclic number.

It is not a de Polignac number, because 135968117 - 2¹² = 135964021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135968167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67984058 + 67984059.

It is an arithmetic number, because the mean of its divisors is an integer number (67984059).

Almost surely, 2^135968117 is an apocalyptic number.

It is an amenable number.

135968117 is a deficient number, since it is larger than the sum of its proper divisors (1).

135968117 is an equidigital number, since it uses as much as digits as its factorization.

135968117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 41.

The square root of 135968117 is about 11660.5367372175. The cubic root of 135968117 is about 514.2161286326.

The spelling of 135968117 in words is "one hundred thirty-five million, nine hundred sixty-eight thousand, one hundred seventeen".