12055839 has 16 divisors (see below), whose sum is σ = 17202528. Its totient is φ = 7483392.

The previous prime is 12055837. The next prime is 12055843. The reversal of 12055839 is 93855021.

It is not a de Polignac number, because 12055839 - 2¹ = 12055837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12055837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3729 + ... + 6165.

It is an arithmetic number, because the mean of its divisors is an integer number (1075158).

Almost surely, 2^12055839 is an apocalyptic number.

12055839 is a deficient number, since it is larger than the sum of its proper divisors (5146689).

12055839 is a wasteful number, since it uses less digits than its factorization.

12055839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 12055839 is about 3472.1519263995. The cubic root of 12055839 is about 229.2974085625.

The spelling of 12055839 in words is "twelve million, fifty-five thousand, eight hundred thirty-nine".