12126091 has 2 divisors, whose sum is σ = 12126092. Its totient is φ = 12126090.

The previous prime is 12126077. The next prime is 12126097. The reversal of 12126091 is 19062121.

12126091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12126091 - 2⁷ = 12125963 is a prime.

It is not a weakly prime, because it can be changed into another prime (12126097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063045 + 6063046.

It is an arithmetic number, because the mean of its divisors is an integer number (6063046).

Almost surely, 2^12126091 is an apocalyptic number.

12126091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12126091 is an equidigital number, since it uses as much as digits as its factorization.

12126091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 12126091 is about 3482.2537242424. The cubic root of 12126091 is about 229.7419348761.

The spelling of 12126091 in words is "twelve million, one hundred twenty-six thousand, ninety-one".