1012209 has 16 divisors (see below), whose sum is σ = 1513920. Its totient is φ = 596160.

The previous prime is 1012201. The next prime is 1012213. The reversal of 1012209 is 9022101.

It is a happy number.

It is not a de Polignac number, because 1012209 - 2³ = 1012201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1012201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 807 + ... + 1635.

It is an arithmetic number, because the mean of its divisors is an integer number (94620).

2^1012209 is an apocalyptic number.

It is an amenable number.

1012209 is a deficient number, since it is larger than the sum of its proper divisors (501711).

1012209 is a wasteful number, since it uses less digits than its factorization.

1012209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880.

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

The square root of 1012209 is about 1006.0859804212. The cubic root of 1012209 is about 100.4053215911.

It can be divided in two parts, 1012 and 209, that added together give a palindrome (1221).

The spelling of 1012209 in words is "one million, twelve thousand, two hundred nine".