195823 has 4 divisors (see below), whose sum is σ = 207360. Its totient is φ = 184288.

The previous prime is 195817. The next prime is 195863. The reversal of 195823 is 328591.

195823 is nontrivially palindromic in base 14.

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 195823 - 2⁵ = 195791 is a prime.

It is a Duffinian number.

195823 is an undulating number in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 195791 and 195800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195863) 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, 5743 + ... + 5776.

It is an arithmetic number, because the mean of its divisors is an integer number (51840).

2¹⁹⁵⁸²³ is an apocalyptic number.

195823 is a deficient number, since it is larger than the sum of its proper divisors (11537).

195823 is a wasteful number, since it uses less digits than its factorization.

195823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11536.

The product of its digits is 2160, while the sum is 28.

The square root of 195823 is about 442.5189261489. The cubic root of 195823 is about 58.0703664389.

The spelling of 195823 in words is "one hundred ninety-five thousand, eight hundred twenty-three".