196505369 has 2 divisors, whose sum is σ = 196505370. Its totient is φ = 196505368.

The previous prime is 196505347. The next prime is 196505377. The reversal of 196505369 is 963505691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107391769 + 89113600 = 10363^2 + 9440^2 .

It is a cyclic number.

It is not a de Polignac number, because 196505369 - 2¹² = 196501273 is a prime.

It is a super-2 number, since 2×196505369² = 77228720091652322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (196504369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98252684 + 98252685.

It is an arithmetic number, because the mean of its divisors is an integer number (98252685).

Almost surely, 2^196505369 is an apocalyptic number.

It is an amenable number.

196505369 is a deficient number, since it is larger than the sum of its proper divisors (1).

196505369 is an equidigital number, since it uses as much as digits as its factorization.

196505369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 218700, while the sum is 44.

The square root of 196505369 is about 14018.0372734559. The cubic root of 196505369 is about 581.3773932201.

The spelling of 196505369 in words is "one hundred ninety-six million, five hundred five thousand, three hundred sixty-nine".