1166544 has 30 divisors (see below), whose sum is σ = 3265106. Its totient is φ = 388800.

The previous prime is 1166533. The next prime is 1166549. The reversal of 1166544 is 4456611.

1166544 is a `hidden beast` number, since 1 + 1 + 6 + 654 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1166400 + 144 = 1080^2 + 12^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3907 + ... + 4194.

2^1166544 is an apocalyptic number.

It is an amenable number.

1166544 is an abundant number, since it is smaller than the sum of its proper divisors (2098562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166544 is a wasteful number, since it uses less digits than its factorization.

1166544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8115 (or 8106 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1166544 is about 1080.0666646092. The cubic root of 1166544 is about 105.2689702755.

The spelling of 1166544 in words is "one million, one hundred sixty-six thousand, five hundred forty-four".