198271082 has 4 divisors (see below), whose sum is σ = 297406626. Its totient is φ = 99135540.

The previous prime is 198271069. The next prime is 198271103. The reversal of 198271082 is 280172891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 280172891 = 83 ⋅3375577.

It can be written as a sum of positive squares in only one way, i.e., 170276401 + 27994681 = 13049^2 + 5291^2 .

It is a super-2 number, since 2×198271082² = 78622843914901448, which contains 22 as substring.

It is an unprimeable number.

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, 49567769 + ... + 49567772.

Almost surely, 2^198271082 is an apocalyptic number.

198271082 is a deficient number, since it is larger than the sum of its proper divisors (99135544).

198271082 is an equidigital number, since it uses as much as digits as its factorization.

198271082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99135543.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 198271082 is about 14080.8764641978. The cubic root of 198271082 is about 583.1135394710.

The spelling of 198271082 in words is "one hundred ninety-eight million, two hundred seventy-one thousand, eighty-two".