198193513 has 4 divisors (see below), whose sum is σ = 226506880. Its totient is φ = 169880148.

The previous prime is 198193469. The next prime is 198193519. The reversal of 198193513 is 315391891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 198193513 - 2¹³ = 198185321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198193519) 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 3 ways as a sum of consecutive naturals, for example, 14156673 + ... + 14156686.

It is an arithmetic number, because the mean of its divisors is an integer number (56626720).

Almost surely, 2^198193513 is an apocalyptic number.

It is an amenable number.

198193513 is a deficient number, since it is larger than the sum of its proper divisors (28313367).

198193513 is an equidigital number, since it uses as much as digits as its factorization.

198193513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28313366.

The product of its digits is 29160, while the sum is 40.

The square root of 198193513 is about 14078.1217852383. The cubic root of 198193513 is about 583.0374862992.

It can be divided in two parts, 19819 and 3513, that added together give a palindrome (23332).

The spelling of 198193513 in words is "one hundred ninety-eight million, one hundred ninety-three thousand, five hundred thirteen".