199007449 has 3 divisors (see below), whose sum is σ = 199021557. Its totient is φ = 198993342.

The previous prime is 199007443. The next prime is 199007453. The reversal of 199007449 is 944700991.

The square root of 199007449 is 14107.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 199007449 - 2³ = 199007441 is a prime.

It is a super-3 number, since 3×199007449³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199007441) 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 2 ways as a sum of consecutive naturals, for example, 7054 + ... + 21160.

It is an arithmetic number, because the mean of its divisors is an integer number (66340519).

Almost surely, 2^199007449 is an apocalyptic number.

199007449 is the 14107-th square number.

199007449 is the 7054-th centered octagonal number.

It is an amenable number.

199007449 is a deficient number, since it is larger than the sum of its proper divisors (14108).

199007449 is an frugal number, since it uses more digits than its factorization.

199007449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28214 (or 14107 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The cubic root of 199007449 is about 583.8345306290.

The spelling of 199007449 in words is "one hundred ninety-nine million, seven thousand, four hundred forty-nine".