198801245 has 8 divisors (see below), whose sum is σ = 238659000. Its totient is φ = 158976000.

The previous prime is 198801223. The next prime is 198801283. The reversal of 198801245 is 542108891.

It can be written as a sum of positive squares in 4 ways, for example, as 9078169 + 189723076 = 3013^2 + 13774^2 .

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

It is not a de Polignac number, because 198801245 - 2¹⁰ = 198800221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198801199 and 198801208.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8381 + ... + 21629.

It is an arithmetic number, because the mean of its divisors is an integer number (29832375).

Almost surely, 2^198801245 is an apocalyptic number.

It is an amenable number.

198801245 is a deficient number, since it is larger than the sum of its proper divisors (39857755).

198801245 is a wasteful number, since it uses less digits than its factorization.

198801245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16255.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 198801245 is about 14099.6895355891. The cubic root of 198801245 is about 583.6328118475.

The spelling of 198801245 in words is "one hundred ninety-eight million, eight hundred one thousand, two hundred forty-five".