195068736 has 196 divisors, whose sum is σ = 601329252. Its totient is φ = 62705664.

The previous prime is 195068723. The next prime is 195068777. The reversal of 195068736 is 637860591.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78428736 + 116640000 = 8856^2 + 10800^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 195068691 and 195068700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1726216 + ... + 1726328.

Almost surely, 2^195068736 is an apocalyptic number.

195068736 is a gapful number since it is divisible by the number (16) 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 195068736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300664626).

195068736 is an abundant number, since it is smaller than the sum of its proper divisors (406260516).

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

195068736 is an equidigital number, since it uses as much as digits as its factorization.

195068736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 195068736 is about 13966.7009705227. The cubic root of 195068736 is about 579.9571272313.

The spelling of 195068736 in words is "one hundred ninety-five million, sixty-eight thousand, seven hundred thirty-six".