1009201 has 2 divisors, whose sum is σ = 1009202. Its totient is φ = 1009200.

The previous prime is 1009199. The next prime is 1009207. The reversal of 1009201 is 1029001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 705600 + 303601 = 840^2 + 551^2 .

It is an emirp because it is prime and its reverse (1029001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1009201 - 2¹ = 1009199 is a prime.

Together with 1009199, it forms a pair of twin primes.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (1009207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504600 + 504601.

It is an arithmetic number, because the mean of its divisors is an integer number (504601).

2^1009201 is an apocalyptic number.

It is an amenable number.

1009201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009201 is an equidigital number, since it uses as much as digits as its factorization.

1009201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1009201 is about 1004.5899661056. The cubic root of 1009201 is about 100.3057641301.

The spelling of 1009201 in words is "one million, nine thousand, two hundred one".