12109929 has 8 divisors (see below), whose sum is σ = 17388672. Its totient is φ = 7452240.

The previous prime is 12109919. The next prime is 12109931. The reversal of 12109929 is 92990121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12109929 - 2⁴ = 12109913 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12109929.

It is not an unprimeable number, because it can be changed into a prime (12109919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155217 + ... + 155294.

It is an arithmetic number, because the mean of its divisors is an integer number (2173584).

Almost surely, 2^12109929 is an apocalyptic number.

It is an amenable number.

12109929 is a deficient number, since it is larger than the sum of its proper divisors (5278743).

12109929 is a wasteful number, since it uses less digits than its factorization.

12109929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310527.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 12109929 is about 3479.9323269282. The cubic root of 12109929 is about 229.6398206275.

The spelling of 12109929 in words is "twelve million, one hundred nine thousand, nine hundred twenty-nine".