1144564 has 12 divisors (see below), whose sum is σ = 2012164. Its totient is φ = 569664.

The previous prime is 1144537. The next prime is 1144573. The reversal of 1144564 is 4654411.

It can be written as a sum of positive squares in 2 ways, for example, as 708964 + 435600 = 842^2 + 660^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592 + ... + 1624.

2^1144564 is an apocalyptic number.

It is an amenable number.

1144564 is a deficient number, since it is larger than the sum of its proper divisors (867600).

1144564 is a wasteful number, since it uses less digits than its factorization.

1144564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314 (or 1312 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1144564 is about 1069.8429791329. The cubic root of 1144564 is about 104.6036150920.

Adding to 1144564 its reverse (4654411), we get a palindrome (5798975).

The spelling of 1144564 in words is "one million, one hundred forty-four thousand, five hundred sixty-four".