195133349 has 2 divisors, whose sum is σ = 195133350. Its totient is φ = 195133348.

The previous prime is 195133297. The next prime is 195133369. The reversal of 195133349 is 943331591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179372449 + 15760900 = 13393^2 + 3970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195133349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195133369) 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, 97566674 + 97566675.

It is an arithmetic number, because the mean of its divisors is an integer number (97566675).

Almost surely, 2^195133349 is an apocalyptic number.

It is an amenable number.

195133349 is a deficient number, since it is larger than the sum of its proper divisors (1).

195133349 is an equidigital number, since it uses as much as digits as its factorization.

195133349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 38.

The square root of 195133349 is about 13969.0138878877. The cubic root of 195133349 is about 580.0211536082.

The spelling of 195133349 in words is "one hundred ninety-five million, one hundred thirty-three thousand, three hundred forty-nine".