199450343 has 4 divisors (see below), whose sum is σ = 199743048. Its totient is φ = 199157640.

The previous prime is 199450301. The next prime is 199450379. The reversal of 199450343 is 343054991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343054991 = 193 ⋅1777487.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199450343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199450297 and 199450306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199450843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145328 + ... + 146693.

It is an arithmetic number, because the mean of its divisors is an integer number (49935762).

Almost surely, 2^199450343 is an apocalyptic number.

199450343 is a deficient number, since it is larger than the sum of its proper divisors (292705).

199450343 is an equidigital number, since it uses as much as digits as its factorization.

199450343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292704.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 199450343 is about 14122.6889436821. The cubic root of 199450343 is about 584.2673205012.

The spelling of 199450343 in words is "one hundred ninety-nine million, four hundred fifty thousand, three hundred forty-three".