195947520 has 88 divisors (see below), whose sum is σ = 626775024. Its totient is φ = 52248576.

The previous prime is 195947503. The next prime is 195947533. The reversal of 195947520 is 25749591.

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 7 ways as a sum of consecutive naturals, for example, 8982 + ... + 21738.

Almost surely, 2^195947520 is an apocalyptic number.

195947520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195947520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313387512).

195947520 is an abundant number, since it is smaller than the sum of its proper divisors (430827504).

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

195947520 is a wasteful number, since it uses less digits than its factorization.

195947520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12785 (or 12767 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 195947520 is about 13998.1255888065. The cubic root of 195947520 is about 580.8267243279.

The spelling of 195947520 in words is "one hundred ninety-five million, nine hundred forty-seven thousand, five hundred twenty".