199061 has 4 divisors (see below), whose sum is σ = 200652. Its totient is φ = 197472.

The previous prime is 199049. The next prime is 199081. The reversal of 199061 is 160991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160991 = 199 ⋅809.

It can be written as a sum of positive squares in 2 ways, for example, as 164836 + 34225 = 406^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 199061 - 2⁶ = 198997 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590 + ... + 863.

It is an arithmetic number, because the mean of its divisors is an integer number (50163).

2¹⁹⁹⁰⁶¹ is an apocalyptic number.

It is an amenable number.

199061 is a deficient number, since it is larger than the sum of its proper divisors (1591).

199061 is a wasteful number, since it uses less digits than its factorization.

199061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 199061 is about 446.1625264408. The cubic root of 199061 is about 58.3886894027.

The spelling of 199061 in words is "one hundred ninety-nine thousand, sixty-one".