1312426206 has 128 divisors (see below), whose sum is σ = 3625789440. Its totient is φ = 342641664.

The previous prime is 1312426189. The next prime is 1312426211. The reversal of 1312426206 is 6026242131.

1312426206 is a `hidden beast` number, since 1 + 31 + 2 + 4 + 2 + 620 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1312426206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 504846 + ... + 507438.

It is an arithmetic number, because the mean of its divisors is an integer number (28326480).

Almost surely, 2^1312426206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312426206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1812894720).

1312426206 is an abundant number, since it is smaller than the sum of its proper divisors (2313363234).

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

1312426206 is a wasteful number, since it uses less digits than its factorization.

1312426206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1312426206 is about 36227.4233972001. The cubic root of 1312426206 is about 1094.8592650804.

Adding to 1312426206 its reverse (6026242131), we get a palindrome (7338668337).

The spelling of 1312426206 in words is "one billion, three hundred twelve million, four hundred twenty-six thousand, two hundred six".