199066874 has 4 divisors (see below), whose sum is σ = 298600314. Its totient is φ = 99533436.

The previous prime is 199066873. The next prime is 199066883. The reversal of 199066874 is 478660991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 478660991 = 419 ⋅1142389.

It can be written as a sum of positive squares in only one way, i.e., 152349649 + 46717225 = 12343^2 + 6835^2 .

It is not an unprimeable number, because it can be changed into a prime (199066873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49766717 + ... + 49766720.

Almost surely, 2^199066874 is an apocalyptic number.

199066874 is a deficient number, since it is larger than the sum of its proper divisors (99533440).

199066874 is an equidigital number, since it uses as much as digits as its factorization.

199066874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99533439.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 199066874 is about 14109.1060666507. The cubic root of 199066874 is about 583.8926371880.

The spelling of 199066874 in words is "one hundred ninety-nine million, sixty-six thousand, eight hundred seventy-four".