12116091 has 32 divisors (see below), whose sum is σ = 18627840. Its totient is φ = 6943104.

The previous prime is 12116081. The next prime is 12116107. The reversal of 12116091 is 19061121.

It is not a de Polignac number, because 12116091 - 2¹³ = 12107899 is a prime.

It is a super-2 number, since 2×12116091² = 293599322240562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12116011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61405 + ... + 61601.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

Almost surely, 2^12116091 is an apocalyptic number.

12116091 is a deficient number, since it is larger than the sum of its proper divisors (6511749).

12116091 is a wasteful number, since it uses less digits than its factorization.

12116091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315.

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 12116091 is about 3480.8175763748. The cubic root of 12116091 is about 229.6787638956.

The spelling of 12116091 in words is "twelve million, one hundred sixteen thousand, ninety-one".