195112215 has 24 divisors (see below), whose sum is σ = 340638480. Its totient is φ = 103307904.

The previous prime is 195112187. The next prime is 195112217. The reversal of 195112215 is 512211591.

195112215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 195112215 - 2¹⁶ = 195046679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195112217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9342 + ... + 21851.

It is an arithmetic number, because the mean of its divisors is an integer number (14193270).

Almost surely, 2^195112215 is an apocalyptic number.

195112215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

195112215 is a deficient number, since it is larger than the sum of its proper divisors (145526265).

195112215 is a wasteful number, since it uses less digits than its factorization.

195112215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31343 (or 31340 counting only the distinct ones).

The product of its digits is 900, while the sum is 27.

The square root of 195112215 is about 13968.2574074220. The cubic root of 195112215 is about 580.0002130400. Note that the first 3 decimals are identical.

The spelling of 195112215 in words is "one hundred ninety-five million, one hundred twelve thousand, two hundred fifteen".