196449271 has 2 divisors, whose sum is σ = 196449272. Its totient is φ = 196449270.

The previous prime is 196449269. The next prime is 196449289. The reversal of 196449271 is 172944691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196449271 - 2¹ = 196449269 is a prime.

Together with 196449269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196449251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98224635 + 98224636.

It is an arithmetic number, because the mean of its divisors is an integer number (98224636).

Almost surely, 2^196449271 is an apocalyptic number.

196449271 is a deficient number, since it is larger than the sum of its proper divisors (1).

196449271 is an equidigital number, since it uses as much as digits as its factorization.

196449271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 196449271 is about 14016.0362085720. The cubic root of 196449271 is about 581.3220644299.

The spelling of 196449271 in words is "one hundred ninety-six million, four hundred forty-nine thousand, two hundred seventy-one".