197320256 has 42 divisors (see below), whose sum is σ = 455492358. Its totient is φ = 84564480.

The previous prime is 197320247. The next prime is 197320271. The reversal of 197320256 is 652023791.

It can be written as a sum of positive squares in only one way, i.e., 174662656 + 22657600 = 13216^2 + 4760^2 .

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 5 ways as a sum of consecutive naturals, for example, 28325 + ... + 34596.

Almost surely, 2^197320256 is an apocalyptic number.

197320256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

197320256 is an abundant number, since it is smaller than the sum of its proper divisors (258172102).

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

197320256 is an equidigital number, since it uses as much as digits as its factorization.

197320256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62947 (or 62930 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 197320256 is about 14047.0728623440. The cubic root of 197320256 is about 582.1799217779.

The spelling of 197320256 in words is "one hundred ninety-seven million, three hundred twenty thousand, two hundred fifty-six".