12066539 has 8 divisors (see below), whose sum is σ = 12864000. Its totient is φ = 11285352.

The previous prime is 12066517. The next prime is 12066547. The reversal of 12066539 is 93566021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12066539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12036539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2519 + ... + 5520.

It is an arithmetic number, because the mean of its divisors is an integer number (1608000).

Almost surely, 2^12066539 is an apocalyptic number.

12066539 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12066539 is a deficient number, since it is larger than the sum of its proper divisors (797461).

12066539 is an equidigital number, since it uses as much as digits as its factorization.

12066539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8137.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 12066539 is about 3473.6924158595. The cubic root of 12066539 is about 229.3652251277.

The spelling of 12066539 in words is "twelve million, sixty-six thousand, five hundred thirty-nine".