199118673 has 72 divisors (see below), whose sum is σ = 332527104. Its totient is φ = 114566400.

The previous prime is 199118629. The next prime is 199118723. The reversal of 199118673 is 376811991.

It is not a de Polignac number, because 199118673 - 2¹⁴ = 199102289 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199118173) 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 71 ways as a sum of consecutive naturals, for example, 1933140 + ... + 1933242.

It is an arithmetic number, because the mean of its divisors is an integer number (4618432).

Almost surely, 2^199118673 is an apocalyptic number.

199118673 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

199118673 is a deficient number, since it is larger than the sum of its proper divisors (133408431).

199118673 is a wasteful number, since it uses less digits than its factorization.

199118673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 191 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 199118673 is about 14110.9416057186. The cubic root of 199118673 is about 583.9432775099.

The spelling of 199118673 in words is "one hundred ninety-nine million, one hundred eighteen thousand, six hundred seventy-three".