199414447 has 4 divisors (see below), whose sum is σ = 204278256. Its totient is φ = 194550640.

The previous prime is 199414421. The next prime is 199414451. The reversal of 199414447 is 744414991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744414991 = 691 ⋅1077301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199414447 is a prime.

It is a super-2 number, since 2×199414447² = 79532243344631618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199414477) 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 in 3 ways as a sum of consecutive naturals, for example, 2431843 + ... + 2431924.

It is an arithmetic number, because the mean of its divisors is an integer number (51069564).

Almost surely, 2^199414447 is an apocalyptic number.

199414447 is a deficient number, since it is larger than the sum of its proper divisors (4863809).

199414447 is an equidigital number, since it uses as much as digits as its factorization.

199414447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4863808.

The product of its digits is 145152, while the sum is 43.

The square root of 199414447 is about 14121.4180236972. The cubic root of 199414447 is about 584.2322673016.

The spelling of 199414447 in words is "one hundred ninety-nine million, four hundred fourteen thousand, four hundred forty-seven".