12691126 has 16 divisors (see below), whose sum is σ = 22901760. Its totient is φ = 5152680.

The previous prime is 12691109. The next prime is 12691169. The reversal of 12691126 is 62119621.

12691126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12691126² = 322129358295752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12691094 and 12691103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23590 + ... + 24121.

It is an arithmetic number, because the mean of its divisors is an integer number (1431360).

Almost surely, 2^12691126 is an apocalyptic number.

12691126 is a deficient number, since it is larger than the sum of its proper divisors (10210634).

12691126 is a wasteful number, since it uses less digits than its factorization.

12691126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47739.

The product of its digits is 1296, while the sum is 28.

The square root of 12691126 is about 3562.4606664495. The cubic root of 12691126 is about 233.2563015559.

The spelling of 12691126 in words is "twelve million, six hundred ninety-one thousand, one hundred twenty-six".