199138 has 8 divisors (see below), whose sum is σ = 316332. Its totient is φ = 93696.

The previous prime is 199109. The next prime is 199151. The reversal of 199138 is 831991.

It can be written as a sum of positive squares in 2 ways, for example, as 165649 + 33489 = 407^2 + 183^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2895 + ... + 2962.

2¹⁹⁹¹³⁸ is an apocalyptic number.

199138 is a deficient number, since it is larger than the sum of its proper divisors (117194).

199138 is a wasteful number, since it uses less digits than its factorization.

199138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5876.

The product of its digits is 1944, while the sum is 31.

The square root of 199138 is about 446.2488095222. The cubic root of 199138 is about 58.3962169940.

The spelling of 199138 in words is "one hundred ninety-nine thousand, one hundred thirty-eight".