1209201 has 16 divisors (see below), whose sum is σ = 1870848. Its totient is φ = 680400.

The previous prime is 1209199. The next prime is 1209209. The reversal of 1209201 is 1029021.

It is a happy number.

It is not a de Polignac number, because 1209201 - 2¹ = 1209199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1209209) 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 in 15 ways as a sum of consecutive naturals, for example, 1086 + ... + 1896.

It is an arithmetic number, because the mean of its divisors is an integer number (116928).

2^1209201 is an apocalyptic number.

It is an amenable number.

1209201 is a deficient number, since it is larger than the sum of its proper divisors (661647).

1209201 is an equidigital number, since it uses as much as digits as its factorization.

1209201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1209201 is about 1099.6367582070. The cubic root of 1209201 is about 106.5367635207.

The spelling of 1209201 in words is "one million, two hundred nine thousand, two hundred one".