199538 has 16 divisors (see below), whose sum is σ = 324000. Its totient is φ = 91872.

The previous prime is 199523. The next prime is 199559. The reversal of 199538 is 835991.

199538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 199498 and 199507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2198 + ... + 2286.

It is an arithmetic number, because the mean of its divisors is an integer number (20250).

2¹⁹⁹⁵³⁸ is an apocalyptic number.

199538 is a deficient number, since it is larger than the sum of its proper divisors (124462).

199538 is a wasteful number, since it uses less digits than its factorization.

199538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169.

The product of its digits is 9720, while the sum is 35.

The square root of 199538 is about 446.6967651551. The cubic root of 199538 is about 58.4352901735.

It can be divided in two parts, 199 and 538, that added together give a palindrome (737).

The spelling of 199538 in words is "one hundred ninety-nine thousand, five hundred thirty-eight".