199755329 has 2 divisors, whose sum is σ = 199755330. Its totient is φ = 199755328.

The previous prime is 199755319. The next prime is 199755337. The reversal of 199755329 is 923557991.

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., 130416400 + 69338929 = 11420^2 + 8327^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199755329 is a prime.

It is not a weakly prime, because it can be changed into another prime (199755319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99877664 + 99877665.

It is an arithmetic number, because the mean of its divisors is an integer number (99877665).

Almost surely, 2^199755329 is an apocalyptic number.

It is an amenable number.

199755329 is a deficient number, since it is larger than the sum of its proper divisors (1).

199755329 is an equidigital number, since it uses as much as digits as its factorization.

199755329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 765450, while the sum is 50.

The square root of 199755329 is about 14133.4825503129. The cubic root of 199755329 is about 584.5649762156.

The spelling of 199755329 in words is "one hundred ninety-nine million, seven hundred fifty-five thousand, three hundred twenty-nine".