199112612 has 12 divisors (see below), whose sum is σ = 351897756. Its totient is φ = 98570400.

The previous prime is 199112611. The next prime is 199112621. The reversal of 199112612 is 216211991.

It can be written as a sum of positive squares in 2 ways, for example, as 196728676 + 2383936 = 14026^2 + 1544^2 .

It is not an unprimeable number, because it can be changed into a prime (199112611) 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 in 3 ways as a sum of consecutive naturals, for example, 246023 + ... + 246830.

It is an arithmetic number, because the mean of its divisors is an integer number (29324813).

Almost surely, 2^199112612 is an apocalyptic number.

It is an amenable number.

199112612 is a deficient number, since it is larger than the sum of its proper divisors (152785144).

199112612 is a wasteful number, since it uses less digits than its factorization.

199112612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492958 (or 492956 counting only the distinct ones).

The product of its digits is 1944, while the sum is 32.

The square root of 199112612 is about 14110.7268416620. The cubic root of 199112612 is about 583.9373525405.

The spelling of 199112612 in words is "one hundred ninety-nine million, one hundred twelve thousand, six hundred twelve".