198522003 has 4 divisors (see below), whose sum is σ = 264696008. Its totient is φ = 132348000.

The previous prime is 198522001. The next prime is 198522007. The reversal of 198522003 is 300225891.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 198522003 - 2¹ = 198522001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198522001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33086998 + ... + 33087003.

It is an arithmetic number, because the mean of its divisors is an integer number (66174002).

Almost surely, 2^198522003 is an apocalyptic number.

198522003 is a deficient number, since it is larger than the sum of its proper divisors (66174005).

198522003 is an equidigital number, since it uses as much as digits as its factorization.

198522003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66174004.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 198522003 is about 14089.7836392189. The cubic root of 198522003 is about 583.3594212732.

Adding to 198522003 its reverse (300225891), we get a palindrome (498747894).

The spelling of 198522003 in words is "one hundred ninety-eight million, five hundred twenty-two thousand, three".