196755281 has 2 divisors, whose sum is σ = 196755282. Its totient is φ = 196755280.

The previous prime is 196755257. The next prime is 196755283. The reversal of 196755281 is 182557691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195580225 + 1175056 = 13985^2 + 1084^2 .

It is an emirp because it is prime and its reverse (182557691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196755281 - 2⁶ = 196755217 is a prime.

It is a super-2 number, since 2×196755281² = 77425281202777922, which contains 22 as substring.

Together with 196755283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (196755283) 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, 98377640 + 98377641.

It is an arithmetic number, because the mean of its divisors is an integer number (98377641).

Almost surely, 2^196755281 is an apocalyptic number.

It is an amenable number.

196755281 is a deficient number, since it is larger than the sum of its proper divisors (1).

196755281 is an equidigital number, since it uses as much as digits as its factorization.

196755281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 44.

The square root of 196755281 is about 14026.9483851620. The cubic root of 196755281 is about 581.6237505887.

The spelling of 196755281 in words is "one hundred ninety-six million, seven hundred fifty-five thousand, two hundred eighty-one".