201197897 has 8 divisors (see below), whose sum is σ = 217512000. Its totient is φ = 185456304.

The previous prime is 201197891. The next prime is 201197933. The reversal of 201197897 is 798791102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201197897 - 2⁴ = 201197881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201197891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142397 + ... + 143802.

It is an arithmetic number, because the mean of its divisors is an integer number (27189000).

Almost surely, 2^201197897 is an apocalyptic number.

It is an amenable number.

201197897 is a deficient number, since it is larger than the sum of its proper divisors (16314103).

201197897 is a wasteful number, since it uses less digits than its factorization.

201197897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286255.

The product of its (nonzero) digits is 63504, while the sum is 44.

The square root of 201197897 is about 14184.4244507840. The cubic root of 201197897 is about 585.9687817046.

The spelling of 201197897 in words is "two hundred one million, one hundred ninety-seven thousand, eight hundred ninety-seven".