199156 has 6 divisors (see below), whose sum is σ = 348530. Its totient is φ = 99576.

The previous prime is 199153. The next prime is 199181. The reversal of 199156 is 651991.

199156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 144400 + 54756 = 380^2 + 234^2 .

It is a super-2 number, since 2×199156² = 79326224672, which contains 22 as substring.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24891 + ... + 24898.

2¹⁹⁹¹⁵⁶ is an apocalyptic number.

It is an amenable number.

199156 is a deficient number, since it is larger than the sum of its proper divisors (149374).

199156 is a wasteful number, since it uses less digits than its factorization.

199156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49793 (or 49791 counting only the distinct ones).

The product of its digits is 2430, while the sum is 31.

The square root of 199156 is about 446.2689771875. The cubic root of 199156 is about 58.3979764108.

The spelling of 199156 in words is "one hundred ninety-nine thousand, one hundred fifty-six".