1126564 has 6 divisors (see below), whose sum is σ = 1971494. Its totient is φ = 563280.

The previous prime is 1126561. The next prime is 1126577. The reversal of 1126564 is 4656211.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 369664 = 870^2 + 608^2 .

It is not an unprimeable number, because it can be changed into a prime (1126561) 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 as a sum of consecutive naturals, namely, 140817 + ... + 140824.

2^1126564 is an apocalyptic number.

It is an amenable number.

1126564 is a deficient number, since it is larger than the sum of its proper divisors (844930).

1126564 is a wasteful number, since it uses less digits than its factorization.

1126564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281645 (or 281643 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 1126564 is about 1061.3971923837. The cubic root of 1126564 is about 104.0523651479.

The spelling of 1126564 in words is "one million, one hundred twenty-six thousand, five hundred sixty-four".