195974225 has 6 divisors (see below), whose sum is σ = 243008070. Its totient is φ = 156779360.

The previous prime is 195974209. The next prime is 195974243. The reversal of 195974225 is 522479591.

195974225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2430481 + 193543744 = 1559^2 + 13912^2 .

It is not a de Polignac number, because 195974225 - 2⁴ = 195974209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3919460 + ... + 3919509.

It is an arithmetic number, because the mean of its divisors is an integer number (40501345).

Almost surely, 2^195974225 is an apocalyptic number.

It is an amenable number.

195974225 is a deficient number, since it is larger than the sum of its proper divisors (47033845).

195974225 is an equidigital number, since it uses as much as digits as its factorization.

195974225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7838979 (or 7838974 counting only the distinct ones).

The product of its digits is 226800, while the sum is 44.

The square root of 195974225 is about 13999.0794340199. The cubic root of 195974225 is about 580.8531094081.

The spelling of 195974225 in words is "one hundred ninety-five million, nine hundred seventy-four thousand, two hundred twenty-five".