199448245 has 8 divisors (see below), whose sum is σ = 239532984. Its totient is φ = 159428544.

The previous prime is 199448243. The next prime is 199448251. The reversal of 199448245 is 542844991.

It can be written as a sum of positive squares in 4 ways, for example, as 66945124 + 132503121 = 8182^2 + 11511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 199448245 - 2¹ = 199448243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199448195 and 199448204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199448243) 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 7 ways as a sum of consecutive naturals, for example, 9234 + ... + 22003.

It is an arithmetic number, because the mean of its divisors is an integer number (29941623).

Almost surely, 2^199448245 is an apocalyptic number.

It is an amenable number.

199448245 is a deficient number, since it is larger than the sum of its proper divisors (40084739).

199448245 is a wasteful number, since it uses less digits than its factorization.

199448245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32519.

The product of its digits is 414720, while the sum is 46.

The square root of 199448245 is about 14122.6146658471. The cubic root of 199448245 is about 584.2652718757.

The spelling of 199448245 in words is "one hundred ninety-nine million, four hundred forty-eight thousand, two hundred forty-five".