12066251 has 4 divisors (see below), whose sum is σ = 12138672. Its totient is φ = 11993832.

The previous prime is 12066247. The next prime is 12066269. The reversal of 12066251 is 15266021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12066251 - 2² = 12066247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12066221) 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 3 ways as a sum of consecutive naturals, for example, 35960 + ... + 36293.

It is an arithmetic number, because the mean of its divisors is an integer number (3034668).

Almost surely, 2^12066251 is an apocalyptic number.

12066251 is a deficient number, since it is larger than the sum of its proper divisors (72421).

12066251 is an equidigital number, since it uses as much as digits as its factorization.

12066251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72420.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 12066251 is about 3473.6509611646. The cubic root of 12066251 is about 229.3634003098.

The spelling of 12066251 in words is "twelve million, sixty-six thousand, two hundred fifty-one".