11445643 has 8 divisors (see below), whose sum is σ = 12511296. Its totient is φ = 10384200.

The previous prime is 11445593. The next prime is 11445647. The reversal of 11445643 is 34654411.

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-11445643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11445647) 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 7 ways as a sum of consecutive naturals, for example, 8280 + ... + 9562.

It is an arithmetic number, because the mean of its divisors is an integer number (1563912).

Almost surely, 2^11445643 is an apocalyptic number.

11445643 is a deficient number, since it is larger than the sum of its proper divisors (1065653).

11445643 is a wasteful number, since it uses less digits than its factorization.

11445643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105.

The product of its digits is 5760, while the sum is 28.

The square root of 11445643 is about 3383.1409961750. The cubic root of 11445643 is about 225.3616767466.

The spelling of 11445643 in words is "eleven million, four hundred forty-five thousand, six hundred forty-three".