12921126 has 16 divisors (see below), whose sum is σ = 25878528. Its totient is φ = 4301000.

The previous prime is 12921119. The next prime is 12921127. The reversal of 12921126 is 62112921.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12921096 and 12921105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12921127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5971 + ... + 7841.

It is an arithmetic number, because the mean of its divisors is an integer number (1617408).

Almost surely, 2^12921126 is an apocalyptic number.

12921126 is an abundant number, since it is smaller than the sum of its proper divisors (12957402).

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

12921126 is a wasteful number, since it uses less digits than its factorization.

12921126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027.

The product of its digits is 432, while the sum is 24.

The square root of 12921126 is about 3594.5967784996. The cubic root of 12921126 is about 234.6569674488.

The spelling of 12921126 in words is "twelve million, nine hundred twenty-one thousand, one hundred twenty-six".