201197 has 4 divisors (see below), whose sum is σ = 205920. Its totient is φ = 196476.
The previous prime is 201193. The next prime is 201203. The reversal of 201197 is 791102.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 201197 - 22 = 201193 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (201193) 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, 2297 + ... + 2382.
It is an arithmetic number, because the mean of its divisors is an integer number (51480).
2201197 is an apocalyptic number.
It is an amenable number.
201197 is a deficient number, since it is larger than the sum of its proper divisors (4723).
201197 is an equidigital number, since it uses as much as digits as its factorization.
201197 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4722.
The product of its (nonzero) digits is 126, while the sum is 20.
The square root of 201197 is about 448.5498857429. The cubic root of 201197 is about 58.5967910896.
Adding to 201197 its reverse (791102), we get a palindrome (992299).
The spelling of 201197 in words is "two hundred one thousand, one hundred ninety-seven".
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