199145804 has 48 divisors (see below), whose sum is σ = 417221280. Its totient is φ = 81968640.

The previous prime is 199145797. The next prime is 199145831. The reversal of 199145804 is 408541991.

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 15 ways as a sum of consecutive naturals, for example, 27032 + ... + 33600.

It is an arithmetic number, because the mean of its divisors is an integer number (8692110).

Almost surely, 2^199145804 is an apocalyptic number.

It is an amenable number.

199145804 is an abundant number, since it is smaller than the sum of its proper divisors (218075476).

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

199145804 is a wasteful number, since it uses less digits than its factorization.

199145804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6650 (or 6648 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 199145804 is about 14111.9029191672. The cubic root of 199145804 is about 583.9697981191.

The spelling of 199145804 in words is "one hundred ninety-nine million, one hundred forty-five thousand, eight hundred four".