1001201 has 4 divisors (see below), whose sum is σ = 1005732.
Its totient is φ = 996672.
The previous prime is 1001197. The next prime is 1001219. The reversal of 1001201 is 1021001.
It is a happy number.
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 361201 + 640000 = 601^2 + 800^2
It is a cyclic number.
It is not a de Polignac number, because 1001201 - 22 = 1001197 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1001291) 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, 1916 + ... + 2381.
It is an arithmetic number, because the mean of its divisors is an integer number (251433).
21001201 is an apocalyptic number.
It is an amenable number.
1001201 is a deficient number, since it is larger than the sum of its proper divisors (4531).
1001201 is an equidigital number, since it uses as much as digits as its factorization.
1001201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4530.
The product of its (nonzero) digits is 2, while the sum is 5.
The square root of 1001201 is about 1000.6003198081.
The cubic root of 1001201 is about 100.0400173173.
Adding to 1001201 its reverse (1021001), we get a palindrome (2022202).
Multiplying 1001201 by its reverse (1021001), we get a palindrome (1022227222201).
The spelling of 1001201 in words is "one million, one thousand, two hundred one".