199814085 has 24 divisors (see below), whose sum is σ = 346712184. Its totient is φ = 106454400.

The previous prime is 199814059. The next prime is 199814099. The reversal of 199814085 is 580418991.

It can be written as a sum of positive squares in 4 ways, for example, as 9622404 + 190191681 = 3102^2 + 13791^2 .

It is not a de Polignac number, because 199814085 - 2⁹ = 199813573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 199814085.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 56839 + ... + 60251.

It is an arithmetic number, because the mean of its divisors is an integer number (14446341).

Almost surely, 2^199814085 is an apocalyptic number.

199814085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199814085 is a deficient number, since it is larger than the sum of its proper divisors (146898099).

199814085 is a wasteful number, since it uses less digits than its factorization.

199814085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725 (or 4722 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 199814085 is about 14135.5610076148. The cubic root of 199814085 is about 584.6222852127.

The spelling of 199814085 in words is "one hundred ninety-nine million, eight hundred fourteen thousand, eighty-five".