12109669 has 16 divisors (see below), whose sum is σ = 14978880. Its totient is φ = 9624960.

The previous prime is 12109667. The next prime is 12109679. The reversal of 12109669 is 96690121.

It is a cyclic number.

It is not a de Polignac number, because 12109669 - 2¹ = 12109667 is a prime.

It is a super-2 number, since 2×12109669² = 293288166579122, which contains 22 as substring.

It is a Duffinian number.

12109669 is a Rhonda number in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12109667) 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 15 ways as a sum of consecutive naturals, for example, 489 + ... + 4945.

It is an arithmetic number, because the mean of its divisors is an integer number (936180).

Almost surely, 2^12109669 is an apocalyptic number.

12109669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12109669 is a deficient number, since it is larger than the sum of its proper divisors (2869211).

12109669 is a wasteful number, since it uses less digits than its factorization.

12109669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 12109669 is about 3479.8949696794. The cubic root of 12109669 is about 229.6381771612.

The spelling of 12109669 in words is "twelve million, one hundred nine thousand, six hundred sixty-nine".