199382305 has 4 divisors (see below), whose sum is σ = 239258772. Its totient is φ = 159505840.

The previous prime is 199382291. The next prime is 199382329. The reversal of 199382305 is 503283991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102576384 + 96805921 = 10128^2 + 9839^2 .

It is not a de Polignac number, because 199382305 - 2¹⁵ = 199349537 is a prime.

It is a super-2 number, since 2×199382305² = 79506607094226050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19938226 + ... + 19938235.

It is an arithmetic number, because the mean of its divisors is an integer number (59814693).

Almost surely, 2^199382305 is an apocalyptic number.

It is an amenable number.

199382305 is a deficient number, since it is larger than the sum of its proper divisors (39876467).

199382305 is an equidigital number, since it uses as much as digits as its factorization.

199382305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39876466.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 199382305 is about 14120.2799193217. The cubic root of 199382305 is about 584.2008763921.

The spelling of 199382305 in words is "one hundred ninety-nine million, three hundred eighty-two thousand, three hundred five".