199000815 has 16 divisors (see below), whose sum is σ = 342894048. Its totient is φ = 97969536.

The previous prime is 199000801. The next prime is 199000817. The reversal of 199000815 is 518000991.

It is not a de Polignac number, because 199000815 - 2⁵ = 199000783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199000817) 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 15 ways as a sum of consecutive naturals, for example, 510064 + ... + 510453.

It is an arithmetic number, because the mean of its divisors is an integer number (21430878).

Almost surely, 2^199000815 is an apocalyptic number.

199000815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199000815 is a deficient number, since it is larger than the sum of its proper divisors (143893233).

199000815 is a wasteful number, since it uses less digits than its factorization.

199000815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020538.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 199000815 is about 14106.7648665454. The cubic root of 199000815 is about 583.8280430974.

The spelling of 199000815 in words is "one hundred ninety-nine million, eight hundred fifteen", and thus it is an aban number.