198119941 has 8 divisors (see below), whose sum is σ = 204091160. Its totient is φ = 192181248.

The previous prime is 198119869. The next prime is 198119969. The reversal of 198119941 is 149911891.

It can be written as a sum of positive squares in 4 ways, for example, as 23483716 + 174636225 = 4846^2 + 13215^2 .

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 198119941 - 2⁷ = 198119813 is a prime.

It is a super-2 number, since 2×198119941² = 78503022043686962, 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 (198119981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4525 + ... + 20413.

It is an arithmetic number, because the mean of its divisors is an integer number (25511395).

Almost surely, 2^198119941 is an apocalyptic number.

It is an amenable number.

198119941 is a deficient number, since it is larger than the sum of its proper divisors (5971219).

198119941 is a wasteful number, since it uses less digits than its factorization.

198119941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16263.

The product of its digits is 23328, while the sum is 43.

The square root of 198119941 is about 14075.5085520915. The cubic root of 198119941 is about 582.9653336807.

The spelling of 198119941 in words is "one hundred ninety-eight million, one hundred nineteen thousand, nine hundred forty-one".