199171294 has 8 divisors (see below), whose sum is σ = 341436528. Its totient is φ = 85359120.

The previous prime is 199171279. The next prime is 199171307. The reversal of 199171294 is 492171991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 199171294.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7113247 + ... + 7113274.

It is an arithmetic number, because the mean of its divisors is an integer number (42679566).

Almost surely, 2^199171294 is an apocalyptic number.

199171294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199171294 is a deficient number, since it is larger than the sum of its proper divisors (142265234).

199171294 is a wasteful number, since it uses less digits than its factorization.

199171294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14226530.

The product of its digits is 40824, while the sum is 43.

The square root of 199171294 is about 14112.8060285685. The cubic root of 199171294 is about 583.9947124529.

The spelling of 199171294 in words is "one hundred ninety-nine million, one hundred seventy-one thousand, two hundred ninety-four".