199065 has 16 divisors (see below), whose sum is σ = 332928. Its totient is φ = 101376.

The previous prime is 199049. The next prime is 199081. The reversal of 199065 is 560991.

It is an interprime number because it is at equal distance from previous prime (199049) and next prime (199081).

It is not a de Polignac number, because 199065 - 2⁴ = 199049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57 + ... + 633.

It is an arithmetic number, because the mean of its divisors is an integer number (20808).

2¹⁹⁹⁰⁶⁵ is an apocalyptic number.

199065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199065 is a deficient number, since it is larger than the sum of its proper divisors (133863).

199065 is a wasteful number, since it uses less digits than its factorization.

199065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 199065 is about 446.1670090896. The cubic root of 199065 is about 58.3890804942.

The spelling of 199065 in words is "one hundred ninety-nine thousand, sixty-five".