195723 has 16 divisors (see below), whose sum is σ = 316800. Its totient is φ = 118440.

The previous prime is 195709. The next prime is 195731. The reversal of 195723 is 327591.

It is not a de Polignac number, because 195723 - 2⁵ = 195691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (195733) 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 in 15 ways as a sum of consecutive naturals, for example, 33 + ... + 626.

It is an arithmetic number, because the mean of its divisors is an integer number (19800).

2¹⁹⁵⁷²³ is an apocalyptic number.

195723 is a deficient number, since it is larger than the sum of its proper divisors (121077).

195723 is a wasteful number, since it uses less digits than its factorization.

195723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 673 counting only the distinct ones).

The product of its digits is 1890, while the sum is 27.

The square root of 195723 is about 442.4059222027. The cubic root of 195723 is about 58.0604799166.

The spelling of 195723 in words is "one hundred ninety-five thousand, seven hundred twenty-three".