12039105 has 32 divisors (see below), whose sum is σ = 20974464. Its totient is φ = 5861376.

The previous prime is 12039073. The next prime is 12039107. The reversal of 12039105 is 50193021.

It is not a de Polignac number, because 12039105 - 2⁵ = 12039073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12039107) 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, 20577 + ... + 21153.

It is an arithmetic number, because the mean of its divisors is an integer number (655452).

Almost surely, 2^12039105 is an apocalyptic number.

12039105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12039105 is a deficient number, since it is larger than the sum of its proper divisors (8935359).

12039105 is a wasteful number, since it uses less digits than its factorization.

12039105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 12039105 is about 3469.7413448267. The cubic root of 12039105 is about 229.1912680293.

The spelling of 12039105 in words is "twelve million, thirty-nine thousand, one hundred five".