158199 has 4 divisors (see below), whose sum is σ = 210936. Its totient is φ = 105464.

The previous prime is 158189. The next prime is 158201. The reversal of 158199 is 991851.

158199 is nontrivially palindromic in base 6.

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 158199 - 2⁷ = 158071 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158129) 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, 26364 + ... + 26369.

It is an arithmetic number, because the mean of its divisors is an integer number (52734).

2¹⁵⁸¹⁹⁹ is an apocalyptic number.

158199 is a deficient number, since it is larger than the sum of its proper divisors (52737).

158199 is an equidigital number, since it uses as much as digits as its factorization.

158199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52736.

The product of its digits is 3240, while the sum is 33.

The square root of 158199 is about 397.7423789339. The cubic root of 158199 is about 54.0838888159.

The spelling of 158199 in words is "one hundred fifty-eight thousand, one hundred ninety-nine".