12990126 has 16 divisors (see below), whose sum is σ = 26067024. Its totient is φ = 4315584.

The previous prime is 12990119. The next prime is 12990127. The reversal of 12990126 is 62109921.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12990093 and 12990102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12990127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1581 + ... + 5336.

It is an arithmetic number, because the mean of its divisors is an integer number (1629189).

Almost surely, 2^12990126 is an apocalyptic number.

12990126 is an abundant number, since it is smaller than the sum of its proper divisors (13076898).

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

12990126 is a wasteful number, since it uses less digits than its factorization.

12990126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7235.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 12990126 is about 3604.1817379261. The cubic root of 12990126 is about 235.0739227226.

The spelling of 12990126 in words is "twelve million, nine hundred ninety thousand, one hundred twenty-six".