11804545 has 16 divisors (see below), whose sum is σ = 15143760. Its totient is φ = 8802304.

The previous prime is 11804503. The next prime is 11804549. The reversal of 11804545 is 54540811.

It can be written as a sum of positive squares in 8 ways, for example, as 87616 + 11716929 = 296^2 + 3423^2 .

It is a cyclic number.

It is not a de Polignac number, because 11804545 - 2⁹ = 11804033 is a prime.

11804545 is a modest number, since divided by 4545 gives 1180 as remainder.

It is not an unprimeable number, because it can be changed into a prime (11804549) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8991 + ... + 10219.

It is an arithmetic number, because the mean of its divisors is an integer number (946485).

Almost surely, 2^11804545 is an apocalyptic number.

It is an amenable number.

11804545 is a deficient number, since it is larger than the sum of its proper divisors (3339215).

11804545 is a wasteful number, since it uses less digits than its factorization.

11804545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 11804545 is about 3435.7742941002. The cubic root of 11804545 is about 227.6930374624.

The spelling of 11804545 in words is "eleven million, eight hundred four thousand, five hundred forty-five".