196475549 has 2 divisors, whose sum is σ = 196475550. Its totient is φ = 196475548.

The previous prime is 196475509. The next prime is 196475563. The reversal of 196475549 is 945574691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172396900 + 24078649 = 13130^2 + 4907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196475549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196475497 and 196475506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196475509) 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, 98237774 + 98237775.

It is an arithmetic number, because the mean of its divisors is an integer number (98237775).

Almost surely, 2^196475549 is an apocalyptic number.

It is an amenable number.

196475549 is a deficient number, since it is larger than the sum of its proper divisors (1).

196475549 is an equidigital number, since it uses as much as digits as its factorization.

196475549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 50.

The square root of 196475549 is about 14016.9736034566. The cubic root of 196475549 is about 581.3479834200.

The spelling of 196475549 in words is "one hundred ninety-six million, four hundred seventy-five thousand, five hundred forty-nine".