1140564 has 24 divisors (see below), whose sum is σ = 2818368. Its totient is φ = 357760.

The previous prime is 1140563. The next prime is 1140569. The reversal of 1140564 is 4650411.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140564.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2592 + ... + 2999.

It is an arithmetic number, because the mean of its divisors is an integer number (117432).

2^1140564 is an apocalyptic number.

It is an amenable number.

1140564 is an abundant number, since it is smaller than the sum of its proper divisors (1677804).

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

1140564 is a wasteful number, since it uses less digits than its factorization.

1140564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615 (or 5613 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1140564 is about 1067.9719097429. The cubic root of 1140564 is about 104.4816173032.

Adding to 1140564 its reverse (4650411), we get a palindrome (5790975).

The spelling of 1140564 in words is "one million, one hundred forty thousand, five hundred sixty-four".