198575049 has 4 divisors (see below), whose sum is σ = 264766736. Its totient is φ = 132383364.

The previous prime is 198575029. The next prime is 198575051. The reversal of 198575049 is 940575891.

198575049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 198575049 - 2⁵ = 198575017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198574989 and 198575007.

It is not an unprimeable number, because it can be changed into a prime (198575009) 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, 33095839 + ... + 33095844.

It is an arithmetic number, because the mean of its divisors is an integer number (66191684).

Almost surely, 2^198575049 is an apocalyptic number.

It is an amenable number.

198575049 is a deficient number, since it is larger than the sum of its proper divisors (66191687).

198575049 is an equidigital number, since it uses as much as digits as its factorization.

198575049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66191686.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 198575049 is about 14091.6659412576. The cubic root of 198575049 is about 583.4113754270.

The spelling of 198575049 in words is "one hundred ninety-eight million, five hundred seventy-five thousand, forty-nine".