195278 has 8 divisors (see below), whose sum is σ = 294840. Its totient is φ = 97000.

The previous prime is 195277. The next prime is 195281. The reversal of 195278 is 872591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195271) 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, 308 + ... + 696.

It is an arithmetic number, because the mean of its divisors is an integer number (36855).

2¹⁹⁵²⁷⁸ is an apocalyptic number.

195278 is a deficient number, since it is larger than the sum of its proper divisors (99562).

195278 is a wasteful number, since it uses less digits than its factorization.

195278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642.

The product of its digits is 5040, while the sum is 32.

The square root of 195278 is about 441.9027042235. The cubic root of 195278 is about 58.0164440096.

The spelling of 195278 in words is "one hundred ninety-five thousand, two hundred seventy-eight".