12026539 has 8 divisors (see below), whose sum is σ = 14342400. Its totient is φ = 9860136.

The previous prime is 12026527. The next prime is 12026549. The reversal of 12026539 is 93562021.

12026539 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12026539 - 2⁵ = 12026507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12026549) 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 7 ways as a sum of consecutive naturals, for example, 37189 + ... + 37510.

It is an arithmetic number, because the mean of its divisors is an integer number (1792800).

Almost surely, 2^12026539 is an apocalyptic number.

12026539 is a deficient number, since it is larger than the sum of its proper divisors (2315861).

12026539 is an equidigital number, since it uses as much as digits as its factorization.

12026539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74729.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 12026539 is about 3467.9300742662. The cubic root of 12026539 is about 229.1114996390. Note that the first 3 decimals are identical.

The spelling of 12026539 in words is "twelve million, twenty-six thousand, five hundred thirty-nine".