199315 has 4 divisors (see below), whose sum is σ = 239184. Its totient is φ = 159448.

The previous prime is 199313. The next prime is 199321. The reversal of 199315 is 513991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 199315 - 2¹ = 199313 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199313) 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, 19927 + ... + 19936.

It is an arithmetic number, because the mean of its divisors is an integer number (59796).

2¹⁹⁹³¹⁵ is an apocalyptic number.

199315 is a deficient number, since it is larger than the sum of its proper divisors (39869).

199315 is an equidigital number, since it uses as much as digits as its factorization.

199315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39868.

The product of its digits is 1215, while the sum is 28.

The square root of 199315 is about 446.4470853304. The cubic root of 199315 is about 58.4135133237.

The spelling of 199315 in words is "one hundred ninety-nine thousand, three hundred fifteen".