198253603 has 8 divisors (see below), whose sum is σ = 201777488. Its totient is φ = 194746464.

The previous prime is 198253591. The next prime is 198253613. The reversal of 198253603 is 306352891.

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 198253603 - 2⁵ = 198253571 is a prime.

It is a super-2 number, since 2×198253603² = 78608982204963218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198253613) 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, 21025 + ... + 28957.

It is an arithmetic number, because the mean of its divisors is an integer number (25222186).

Almost surely, 2^198253603 is an apocalyptic number.

198253603 is a deficient number, since it is larger than the sum of its proper divisors (3523885).

198253603 is an equidigital number, since it uses as much as digits as its factorization.

198253603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8373.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 198253603 is about 14080.2557860289. The cubic root of 198253603 is about 583.0964037715.

The spelling of 198253603 in words is "one hundred ninety-eight million, two hundred fifty-three thousand, six hundred three".