196618117 has 2 divisors, whose sum is σ = 196618118. Its totient is φ = 196618116.

The previous prime is 196618109. The next prime is 196618139. The reversal of 196618117 is 711816691.

196618117 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., 194156356 + 2461761 = 13934^2 + 1569^2 .

It is a cyclic number.

It is not a de Polignac number, because 196618117 - 2³ = 196618109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 196618117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196618187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98309058 + 98309059.

It is an arithmetic number, because the mean of its divisors is an integer number (98309059).

Almost surely, 2^196618117 is an apocalyptic number.

It is an amenable number.

196618117 is a deficient number, since it is larger than the sum of its proper divisors (1).

196618117 is an equidigital number, since it uses as much as digits as its factorization.

196618117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 40.

The square root of 196618117 is about 14022.0582298035. The cubic root of 196618117 is about 581.4885633899.

The spelling of 196618117 in words is "one hundred ninety-six million, six hundred eighteen thousand, one hundred seventeen".