12926091 has 4 divisors (see below), whose sum is σ = 17234792. Its totient is φ = 8617392.

The previous prime is 12926077. The next prime is 12926119. The reversal of 12926091 is 19062921.

It is a happy number.

12926091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19062921 = 3 ⋅6354307.

It is not a de Polignac number, because 12926091 - 2⁹ = 12925579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12926021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2154346 + ... + 2154351.

It is an arithmetic number, because the mean of its divisors is an integer number (4308698).

Almost surely, 2^12926091 is an apocalyptic number.

12926091 is a deficient number, since it is larger than the sum of its proper divisors (4308701).

12926091 is an equidigital number, since it uses as much as digits as its factorization.

12926091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4308700.

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

The square root of 12926091 is about 3595.2873320501. The cubic root of 12926091 is about 234.6870195935.

The spelling of 12926091 in words is "twelve million, nine hundred twenty-six thousand, ninety-one".