1200001207 has 4 divisors (see below), whose sum is σ = 1200450160. Its totient is φ = 1199552256.

The previous prime is 1200001193. The next prime is 1200001247. The reversal of 1200001207 is 7021000021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200001207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200001247) 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, 220443 + ... + 225820.

It is an arithmetic number, because the mean of its divisors is an integer number (300112540).

Almost surely, 2^1200001207 is an apocalyptic number.

1200001207 is a deficient number, since it is larger than the sum of its proper divisors (448953).

1200001207 is an equidigital number, since it uses as much as digits as its factorization.

1200001207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448952.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 1200001207 is about 34641.0335729175. The cubic root of 1200001207 is about 1062.6589254683.

Adding to 1200001207 its reverse (7021000021), we get a palindrome (8221001228).

The spelling of 1200001207 in words is "one billion, two hundred million, one thousand, two hundred seven".