12066719 has 16 divisors (see below), whose sum is σ = 15077376. Its totient is φ = 9417600.

The previous prime is 12066713. The next prime is 12066721. The reversal of 12066719 is 91766021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12066719 - 2¹² = 12062623 is a prime.

It is a super-2 number, since 2×12066719² = 291211414849922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12066713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2054 + ... + 5324.

It is an arithmetic number, because the mean of its divisors is an integer number (942336).

Almost surely, 2^12066719 is an apocalyptic number.

12066719 is a deficient number, since it is larger than the sum of its proper divisors (3010657).

12066719 is a wasteful number, since it uses less digits than its factorization.

12066719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 12066719 is about 3473.7183247926. The cubic root of 12066719 is about 229.3663656242.

The spelling of 12066719 in words is "twelve million, sixty-six thousand, seven hundred nineteen".