196088309 has 2 divisors, whose sum is σ = 196088310. Its totient is φ = 196088308.

The previous prime is 196088261. The next prime is 196088359. The reversal of 196088309 is 903880691.

196088309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106028209 + 90060100 = 10297^2 + 9490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196088309 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 196088309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196088359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98044154 + 98044155.

It is an arithmetic number, because the mean of its divisors is an integer number (98044155).

Almost surely, 2^196088309 is an apocalyptic number.

It is an amenable number.

196088309 is a deficient number, since it is larger than the sum of its proper divisors (1).

196088309 is an equidigital number, since it uses as much as digits as its factorization.

196088309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 196088309 is about 14003.1535376857. The cubic root of 196088309 is about 580.9657997234.

The spelling of 196088309 in words is "one hundred ninety-six million, eighty-eight thousand, three hundred nine".