198468503 has 4 divisors (see below), whose sum is σ = 198506160. Its totient is φ = 198430848.

The previous prime is 198468497. The next prime is 198468527. The reversal of 198468503 is 305864891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305864891 = 43 ⋅7113137.

It is a cyclic number.

It is not a de Polignac number, because 198468503 - 2⁸ = 198468247 is a prime.

It is a super-2 number, since 2×198468503² = 78779493366122018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198468103) 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, 9323 + ... + 21996.

It is an arithmetic number, because the mean of its divisors is an integer number (49626540).

Almost surely, 2^198468503 is an apocalyptic number.

198468503 is a deficient number, since it is larger than the sum of its proper divisors (37657).

198468503 is an equidigital number, since it uses as much as digits as its factorization.

198468503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37656.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 198468503 is about 14087.8849725571. The cubic root of 198468503 is about 583.3070130891.

The spelling of 198468503 in words is "one hundred ninety-eight million, four hundred sixty-eight thousand, five hundred three".