1103564 has 24 divisors (see below), whose sum is σ = 2408448. Its totient is φ = 429840.

The previous prime is 1103561. The next prime is 1103579. The reversal of 1103564 is 4653011.

It is not an unprimeable number, because it can be changed into a prime (1103561) 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, 1484 + ... + 2099.

It is an arithmetic number, because the mean of its divisors is an integer number (100352).

2^1103564 is an apocalyptic number.

1103564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1103564 is an abundant number, since it is smaller than the sum of its proper divisors (1304884).

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

1103564 is a wasteful number, since it uses less digits than its factorization.

1103564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3605 (or 3603 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1103564 is about 1050.5065444822. The cubic root of 1103564 is about 103.3393776092.

Adding to 1103564 its reverse (4653011), we get a palindrome (5756575).

The spelling of 1103564 in words is "one million, one hundred three thousand, five hundred sixty-four".