195158 has 4 divisors (see below), whose sum is σ = 292740. Its totient is φ = 97578.

The previous prime is 195157. The next prime is 195161. The reversal of 195158 is 851591.

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

It is a self number, because there is not a number n which added to its sum of digits gives 195158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48788 + ... + 48791.

It is an arithmetic number, because the mean of its divisors is an integer number (73185).

2¹⁹⁵¹⁵⁸ is an apocalyptic number.

195158 is a deficient number, since it is larger than the sum of its proper divisors (97582).

195158 is an equidigital number, since it uses as much as digits as its factorization.

195158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97581.

The product of its digits is 1800, while the sum is 29.

The square root of 195158 is about 441.7669068638. The cubic root of 195158 is about 58.0045577076.

It can be divided in two parts, 195 and 158, that added together give a palindrome (353).

The spelling of 195158 in words is "one hundred ninety-five thousand, one hundred fifty-eight".