197568001 has 4 divisors (see below), whose sum is σ = 197696772. Its totient is φ = 197439232.

The previous prime is 197567989. The next prime is 197568011. The reversal of 197568001 is 100865791.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23961025 + 173606976 = 4895^2 + 13176^2 .

It is a cyclic number.

It is not a de Polignac number, because 197568001 - 2⁵ = 197567969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197568011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62056 + ... + 65161.

It is an arithmetic number, because the mean of its divisors is an integer number (49424193).

Almost surely, 2^197568001 is an apocalyptic number.

It is an amenable number.

197568001 is a deficient number, since it is larger than the sum of its proper divisors (128771).

197568001 is a wasteful number, since it uses less digits than its factorization.

197568001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128770.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 197568001 is about 14055.8884813447. Note that the first 3 decimals coincide. The cubic root of 197568001 is about 582.4234714372.

The spelling of 197568001 in words is "one hundred ninety-seven million, five hundred sixty-eight thousand, one".