192665117 has 2 divisors, whose sum is σ = 192665118. Its totient is φ = 192665116.

The previous prime is 192665071. The next prime is 192665141. The reversal of 192665117 is 711566291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192487876 + 177241 = 13874^2 + 421^2 .

It is an emirp because it is prime and its reverse (711566291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 192665117 - 2¹⁶ = 192599581 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (192665167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96332558 + 96332559.

It is an arithmetic number, because the mean of its divisors is an integer number (96332559).

Almost surely, 2^192665117 is an apocalyptic number.

It is an amenable number.

192665117 is a deficient number, since it is larger than the sum of its proper divisors (1).

192665117 is an equidigital number, since it uses as much as digits as its factorization.

192665117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 38.

The square root of 192665117 is about 13880.3860537090. The cubic root of 192665117 is about 577.5652164251.

The spelling of 192665117 in words is "one hundred ninety-two million, six hundred sixty-five thousand, one hundred seventeen".