195212872 has 16 divisors (see below), whose sum is σ = 366230700. Its totient is φ = 97551360.

The previous prime is 195212869. The next prime is 195212873. The reversal of 195212872 is 278212591.

It can be written as a sum of positive squares in 2 ways, for example, as 185885956 + 9326916 = 13634^2 + 3054^2 .

It is not an unprimeable number, because it can be changed into a prime (195212873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10872 + ... + 22552.

Almost surely, 2^195212872 is an apocalyptic number.

It is an amenable number.

195212872 is a deficient number, since it is larger than the sum of its proper divisors (171017828).

195212872 is a wasteful number, since it uses less digits than its factorization.

195212872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13776 (or 13772 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The square root of 195212872 is about 13971.8600050244. The cubic root of 195212872 is about 580.0999352175.

The spelling of 195212872 in words is "one hundred ninety-five million, two hundred twelve thousand, eight hundred seventy-two".