198374149 has 8 divisors (see below), whose sum is σ = 207672192. Its totient is φ = 189132240.

The previous prime is 198374129. The next prime is 198374161. The reversal of 198374149 is 941473891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198374149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198374099 and 198374108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198374129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6714 + ... + 21019.

It is an arithmetic number, because the mean of its divisors is an integer number (25959024).

Almost surely, 2^198374149 is an apocalyptic number.

It is an amenable number.

198374149 is a deficient number, since it is larger than the sum of its proper divisors (9298043).

198374149 is a wasteful number, since it uses less digits than its factorization.

198374149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28067.

The product of its digits is 217728, while the sum is 46.

The square root of 198374149 is about 14084.5358105974. The cubic root of 198374149 is about 583.2145616872.

The spelling of 198374149 in words is "one hundred ninety-eight million, three hundred seventy-four thousand, one hundred forty-nine".