11543045 has 4 divisors (see below), whose sum is σ = 13851660. Its totient is φ = 9234432.

The previous prime is 11543041. The next prime is 11543047. The reversal of 11543045 is 54034511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7474756 + 4068289 = 2734^2 + 2017^2 .

It is a cyclic number.

It is not a de Polignac number, because 11543045 - 2² = 11543041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11543045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154300 + ... + 1154309.

It is an arithmetic number, because the mean of its divisors is an integer number (3462915).

Almost surely, 2^11543045 is an apocalyptic number.

It is an amenable number.

11543045 is a deficient number, since it is larger than the sum of its proper divisors (2308615).

11543045 is an equidigital number, since it uses as much as digits as its factorization.

11543045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308614.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 11543045 is about 3397.5057027178. The cubic root of 11543045 is about 225.9991450616. Note that the first 3 decimals are identical.

Adding to 11543045 its reverse (54034511), we get a palindrome (65577556).

The spelling of 11543045 in words is "eleven million, five hundred forty-three thousand, forty-five".