11943065 has 4 divisors (see below), whose sum is σ = 14331684. Its totient is φ = 9554448.

The previous prime is 11943053. The next prime is 11943067. The reversal of 11943065 is 56034911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56034911 = 5261 ⋅10651.

It can be written as a sum of positive squares in 2 ways, for example, as 8479744 + 3463321 = 2912^2 + 1861^2 .

It is a cyclic number.

It is not a de Polignac number, because 11943065 - 2¹⁶ = 11877529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11943067) 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, 1194302 + ... + 1194311.

It is an arithmetic number, because the mean of its divisors is an integer number (3582921).

Almost surely, 2^11943065 is an apocalyptic number.

It is an amenable number.

11943065 is a deficient number, since it is larger than the sum of its proper divisors (2388619).

11943065 is an equidigital number, since it uses as much as digits as its factorization.

11943065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388618.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 11943065 is about 3455.8739849711. The cubic root of 11943065 is about 228.5801948833.

Adding to 11943065 its reverse (56034911), we get a palindrome (67977976).

The spelling of 11943065 in words is "eleven million, nine hundred forty-three thousand, sixty-five".