198944501 has 8 divisors (see below), whose sum is σ = 227695104. Its totient is φ = 170276400.

The previous prime is 198944483. The next prime is 198944513. The reversal of 198944501 is 105449891.

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

It is not a de Polignac number, because 198944501 - 2¹⁸ = 198682357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198943501) by changing a digit.

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, 15365 + ... + 25178.

It is an arithmetic number, because the mean of its divisors is an integer number (28461888).

Almost surely, 2^198944501 is an apocalyptic number.

It is an amenable number.

198944501 is a deficient number, since it is larger than the sum of its proper divisors (28750603).

198944501 is an equidigital number, since it uses as much as digits as its factorization.

198944501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41251.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 198944501 is about 14104.7687325954. The cubic root of 198944501 is about 583.7729666158.

The spelling of 198944501 in words is "one hundred ninety-eight million, nine hundred forty-four thousand, five hundred one".