12091079 has 32 divisors (see below), whose sum is σ = 16644096. Its totient is φ = 8478720.

The previous prime is 12091073. The next prime is 12091081. The reversal of 12091079 is 97019021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12091079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12091073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46919 + ... + 47175.

It is an arithmetic number, because the mean of its divisors is an integer number (520128).

Almost surely, 2^12091079 is an apocalyptic number.

12091079 is a deficient number, since it is larger than the sum of its proper divisors (4553017).

12091079 is a wasteful number, since it uses less digits than its factorization.

12091079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 12091079 is about 3477.2228861550. Note that the first 3 decimals coincide. The cubic root of 12091079 is about 229.5206082978.

The spelling of 12091079 in words is "twelve million, ninety-one thousand, seventy-nine".