199282139 has 8 divisors (see below), whose sum is σ = 227874528. Its totient is φ = 170720640.

The previous prime is 199282133. The next prime is 199282147. The reversal of 199282139 is 931282991.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 199282139 - 2⁸ = 199281883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199282139.

It is not an unprimeable number, because it can be changed into a prime (199282133) 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 7 ways as a sum of consecutive naturals, for example, 8339 + ... + 21635.

It is an arithmetic number, because the mean of its divisors is an integer number (28484316).

Almost surely, 2^199282139 is an apocalyptic number.

199282139 is a deficient number, since it is larger than the sum of its proper divisors (28592389).

199282139 is a wasteful number, since it uses less digits than its factorization.

199282139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15445.

The product of its digits is 69984, while the sum is 44.

The square root of 199282139 is about 14116.7325893778. The cubic root of 199282139 is about 584.1030294158.

The spelling of 199282139 in words is "one hundred ninety-nine million, two hundred eighty-two thousand, one hundred thirty-nine".