199998124 has 12 divisors (see below), whose sum is σ = 350937664. Its totient is φ = 99730224.

The previous prime is 199998107. The next prime is 199998131. The reversal of 199998124 is 421899991.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65532 + ... + 68515.

Almost surely, 2^199998124 is an apocalyptic number.

It is an amenable number.

199998124 is a deficient number, since it is larger than the sum of its proper divisors (150939540).

199998124 is a wasteful number, since it uses less digits than its factorization.

199998124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134424 (or 134422 counting only the distinct ones).

The product of its digits is 419904, while the sum is 52.

The square root of 199998124 is about 14142.0692969593. The cubic root of 199998124 is about 584.8017191511.

The spelling of 199998124 in words is "one hundred ninety-nine million, nine hundred ninety-eight thousand, one hundred twenty-four".