198481555 has 8 divisors (see below), whose sum is σ = 242672112. Its totient is φ = 155789088.

The previous prime is 198481553. The next prime is 198481567. The reversal of 198481555 is 555184891.

It is a happy number.

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 198481555 - 2¹ = 198481553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198481553) 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, 374229 + ... + 374758.

It is an arithmetic number, because the mean of its divisors is an integer number (30334014).

Almost surely, 2^198481555 is an apocalyptic number.

198481555 is a deficient number, since it is larger than the sum of its proper divisors (44190557).

198481555 is an equidigital number, since it uses as much as digits as its factorization.

198481555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749045.

The product of its digits is 288000, while the sum is 46.

The square root of 198481555 is about 14088.3481998423. The cubic root of 198481555 is about 583.3197995953.

The spelling of 198481555 in words is "one hundred ninety-eight million, four hundred eighty-one thousand, five hundred fifty-five".