1213083126 has 12 divisors (see below), whose sum is σ = 2628346812. Its totient is φ = 404361036.

The previous prime is 1213083107. The next prime is 1213083169. The reversal of 1213083126 is 6213803121.

It is a happy number.

1213083126 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1213083126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33696736 + ... + 33696771.

It is an arithmetic number, because the mean of its divisors is an integer number (219028901).

Almost surely, 2^1213083126 is an apocalyptic number.

1213083126 is an abundant number, since it is smaller than the sum of its proper divisors (1415263686).

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

1213083126 is a wasteful number, since it uses less digits than its factorization.

1213083126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67393515 (or 67393512 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1213083126 is about 34829.3428878582. The cubic root of 1213083126 is about 1066.5065341429.

Adding to 1213083126 its reverse (6213803121), we get a palindrome (7426886247).

The spelling of 1213083126 in words is "one billion, two hundred thirteen million, eighty-three thousand, one hundred twenty-six".