195743912 has 128 divisors (see below), whose sum is σ = 477523200. Its totient is φ = 73592064.

The previous prime is 195743903. The next prime is 195743921. The reversal of 195743912 is 219347591.

It is an interprime number because it is at equal distance from previous prime (195743903) and next prime (195743921).

It is a self number, because there is not a number n which added to its sum of digits gives 195743912.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4552163 + ... + 4552205.

It is an arithmetic number, because the mean of its divisors is an integer number (3730650).

Almost surely, 2^195743912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195743912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238761600).

195743912 is an abundant number, since it is smaller than the sum of its proper divisors (281779288).

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

195743912 is a wasteful number, since it uses less digits than its factorization.

195743912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 102 counting only the distinct ones).

The product of its digits is 68040, while the sum is 41.

The square root of 195743912 is about 13990.8510105712. The cubic root of 195743912 is about 580.6254766456.

The spelling of 195743912 in words is "one hundred ninety-five million, seven hundred forty-three thousand, nine hundred twelve".