1207009 has 4 divisors (see below), whose sum is σ = 1248660. Its totient is φ = 1165360.

The previous prime is 1207001. The next prime is 1207027. The reversal of 1207009 is 9007021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9007021 = 37 ⋅243433.

It can be written as a sum of positive squares in 2 ways, for example, as 567009 + 640000 = 753^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1207009 - 2³ = 1207001 is a prime.

It is a Duffinian number.

1207009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1207001) 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, 20782 + ... + 20839.

It is an arithmetic number, because the mean of its divisors is an integer number (312165).

2^1207009 is an apocalyptic number.

It is an amenable number.

1207009 is a deficient number, since it is larger than the sum of its proper divisors (41651).

1207009 is an equidigital number, since it uses as much as digits as its factorization.

1207009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41650.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1207009 is about 1098.6396133401. The cubic root of 1207009 is about 106.4723491295.

The spelling of 1207009 in words is "one million, two hundred seven thousand, nine".