1206120006 has 144 divisors (see below), whose sum is σ = 3363416784. Its totient is φ = 309391488.

The previous prime is 1206119987. The next prime is 1206120017. The reversal of 1206120006 is 6000216021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 422821 + ... + 425663.

It is an arithmetic number, because the mean of its divisors is an integer number (23357061).

Almost surely, 2^1206120006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206120006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1681708392).

1206120006 is an abundant number, since it is smaller than the sum of its proper divisors (2157296778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1206120006 is a wasteful number, since it uses less digits than its factorization.

1206120006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915 (or 2905 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1206120006 is about 34729.2384886280. The cubic root of 1206120006 is about 1064.4620281040.

Adding to 1206120006 its reverse (6000216021), we get a palindrome (7206336027).

The spelling of 1206120006 in words is "one billion, two hundred six million, one hundred twenty thousand, six".