199173036 has 12 divisors (see below), whose sum is σ = 464737112. Its totient is φ = 66391008.

The previous prime is 199173019. The next prime is 199173043. The reversal of 199173036 is 630371991.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 199172985 and 199173003.

It is an unprimeable number.

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, 8298865 + ... + 8298888.

Almost surely, 2^199173036 is an apocalyptic number.

It is an amenable number.

199173036 is an abundant number, since it is smaller than the sum of its proper divisors (265564076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199173036 is a wasteful number, since it uses less digits than its factorization.

199173036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16597760 (or 16597758 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 199173036 is about 14112.8677454301. The cubic root of 199173036 is about 583.9964150340.

The spelling of 199173036 in words is "one hundred ninety-nine million, one hundred seventy-three thousand, thirty-six".