1223009 has 4 divisors (see below), whose sum is σ = 1235220. Its totient is φ = 1210800.

The previous prime is 1223003. The next prime is 1223021. The reversal of 1223009 is 9003221.

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 1203409 + 19600 = 1097^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223009 - 2⁴ = 1222993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223003) 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, 5954 + ... + 6155.

It is an arithmetic number, because the mean of its divisors is an integer number (308805).

2^1223009 is an apocalyptic number.

It is an amenable number.

1223009 is a deficient number, since it is larger than the sum of its proper divisors (12211).

1223009 is a wasteful number, since it uses less digits than its factorization.

1223009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12210.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1223009 is about 1105.8973731771. The cubic root of 1223009 is about 106.9407480491.

The spelling of 1223009 in words is "one million, two hundred twenty-three thousand, nine".