12002065 has 4 divisors (see below), whose sum is σ = 14402484. Its totient is φ = 9601648.

The previous prime is 12002059. The next prime is 12002077. The reversal of 12002065 is 56020021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56020021 = 61 ⋅918361.

It can be written as a sum of positive squares in 2 ways, for example, as 8346321 + 3655744 = 2889^2 + 1912^2 .

It is a cyclic number.

It is not a de Polignac number, because 12002065 - 2⁹ = 12001553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200202 + ... + 1200211.

It is an arithmetic number, because the mean of its divisors is an integer number (3600621).

Almost surely, 2^12002065 is an apocalyptic number.

It is an amenable number.

12002065 is a deficient number, since it is larger than the sum of its proper divisors (2400419).

12002065 is an equidigital number, since it uses as much as digits as its factorization.

12002065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400418.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12002065 is about 3464.3996593927. The cubic root of 12002065 is about 228.9559801736.

Adding to 12002065 its reverse (56020021), we get a palindrome (68022086).

The spelling of 12002065 in words is "twelve million, two thousand, sixty-five".