199273194 has 36 divisors (see below), whose sum is σ = 444239874. Its totient is φ = 64510992.

The previous prime is 199273187. The next prime is 199273199. The reversal of 199273194 is 491372991.

199273194 is a `hidden beast` number, since 199 + 273 + 194 = 666.

It can be written as a sum of positive squares in only one way, i.e., 131951169 + 67322025 = 11487^2 + 8205^2 .

It is not an unprimeable number, because it can be changed into a prime (199273199) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 364029 + ... + 364575.

Almost surely, 2^199273194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199273194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222119937).

199273194 is an abundant number, since it is smaller than the sum of its proper divisors (244966680).

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

199273194 is an equidigital number, since it uses as much as digits as its factorization.

199273194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 589 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 199273194 is about 14116.4157632170. The cubic root of 199273194 is about 584.0942899141.

The spelling of 199273194 in words is "one hundred ninety-nine million, two hundred seventy-three thousand, one hundred ninety-four".