198519058 has 4 divisors (see below), whose sum is σ = 297778590. Its totient is φ = 99259528.

The previous prime is 198519037. The next prime is 198519059. The reversal of 198519058 is 850915891.

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

It can be written as a sum of positive squares in only one way, i.e., 131492089 + 67026969 = 11467^2 + 8187^2 .

It is a junction number, because it is equal to n+sod(n) for n = 198518999 and 198519017.

It is not an unprimeable number, because it can be changed into a prime (198519059) 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 as a sum of consecutive naturals, namely, 49629763 + ... + 49629766.

Almost surely, 2^198519058 is an apocalyptic number.

198519058 is a deficient number, since it is larger than the sum of its proper divisors (99259532).

198519058 is an equidigital number, since it uses as much as digits as its factorization.

198519058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99259531.

The product of its (nonzero) digits is 129600, while the sum is 46.

The square root of 198519058 is about 14089.6791304841. The cubic root of 198519058 is about 583.3565366190.

The spelling of 198519058 in words is "one hundred ninety-eight million, five hundred nineteen thousand, fifty-eight".