196303309 has 2 divisors, whose sum is σ = 196303310. Its totient is φ = 196303308.

The previous prime is 196303279. The next prime is 196303313. The reversal of 196303309 is 903303691.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142324900 + 53978409 = 11930^2 + 7347^2 .

It is a cyclic number.

It is not a de Polignac number, because 196303309 - 2⁵ = 196303277 is a prime.

It is equal to p_10885633 and since 196303309 and 10885633 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196303339) 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, 98151654 + 98151655.

It is an arithmetic number, because the mean of its divisors is an integer number (98151655).

Almost surely, 2^196303309 is an apocalyptic number.

It is an amenable number.

196303309 is a deficient number, since it is larger than the sum of its proper divisors (1).

196303309 is an equidigital number, since it uses as much as digits as its factorization.

196303309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 34.

The square root of 196303309 is about 14010.8282767294. The cubic root of 196303309 is about 581.1780544705.

The spelling of 196303309 in words is "one hundred ninety-six million, three hundred three thousand, three hundred nine".