195078 has 32 divisors (see below), whose sum is σ = 437472. Its totient is φ = 57600.

The previous prime is 195077. The next prime is 195089. The reversal of 195078 is 870591.

195078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3168 + ... + 3228.

It is an arithmetic number, because the mean of its divisors is an integer number (13671).

2¹⁹⁵⁰⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218736).

195078 is an abundant number, since it is smaller than the sum of its proper divisors (242394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195078 is a wasteful number, since it uses less digits than its factorization.

195078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 195078 is about 441.6763520951. The cubic root of 195078 is about 57.9966307991.

It can be divided in two parts, 1950 and 78, that multiplied together give a square (152100 = 390²).

The spelling of 195078 in words is "one hundred ninety-five thousand, seventy-eight".