12056439 has 24 divisors (see below), whose sum is σ = 17200512. Its totient is φ = 7509040.

The previous prime is 12056437. The next prime is 12056441. The reversal of 12056439 is 93465021.

It is an interprime number because it is at equal distance from previous prime (12056437) and next prime (12056441).

It is not a de Polignac number, because 12056439 - 2¹ = 12056437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12056437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112624 + ... + 112730.

It is an arithmetic number, because the mean of its divisors is an integer number (716688).

Almost surely, 2^12056439 is an apocalyptic number.

12056439 is a deficient number, since it is larger than the sum of its proper divisors (5144073).

12056439 is a wasteful number, since it uses less digits than its factorization.

12056439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 12056439 is about 3472.2383270738. The cubic root of 12056439 is about 229.3012124222.

The spelling of 12056439 in words is "twelve million, fifty-six thousand, four hundred thirty-nine".