1140566 has 16 divisors (see below), whose sum is σ = 1969056. Its totient is φ = 485376.

The previous prime is 1140563. The next prime is 1140569. The reversal of 1140566 is 6650411.

It is an interprime number because it is at equal distance from previous prime (1140563) and next prime (1140569).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140563) 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 7 ways as a sum of consecutive naturals, for example, 3440 + ... + 3756.

It is an arithmetic number, because the mean of its divisors is an integer number (123066).

2^1140566 is an apocalyptic number.

1140566 is a deficient number, since it is larger than the sum of its proper divisors (828490).

1140566 is a wasteful number, since it uses less digits than its factorization.

1140566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1140566 is about 1067.9728460968. The cubic root of 1140566 is about 104.4816783734.

Adding to 1140566 its reverse (6650411), we get a palindrome (7790977).

The spelling of 1140566 in words is "one million, one hundred forty thousand, five hundred sixty-six".