195059712 has 56 divisors (see below), whose sum is σ = 520193016. Its totient is φ = 65011712.

The previous prime is 195059707. The next prime is 195059737. The reversal of 195059712 is 217950591.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20608 + ... + 28544.

It is an arithmetic number, because the mean of its divisors is an integer number (9289161).

Almost surely, 2^195059712 is an apocalyptic number.

195059712 is a gapful number since it is divisible by the number (12) 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 195059712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260096508).

195059712 is an abundant number, since it is smaller than the sum of its proper divisors (325133304).

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

195059712 is an frugal number, since it uses more digits than its factorization.

195059712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7966 (or 7942 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 39.

The square root of 195059712 is about 13966.3779126873. The cubic root of 195059712 is about 579.9481840353.

The spelling of 195059712 in words is "one hundred ninety-five million, fifty-nine thousand, seven hundred twelve".