1103573 has 4 divisors (see below), whose sum is σ = 1106028. Its totient is φ = 1101120.

The previous prime is 1103561. The next prime is 1103579. The reversal of 1103573 is 3753011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 223729 + 879844 = 473^2 + 938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103579) 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 3 ways as a sum of consecutive naturals, for example, 338 + ... + 1523.

It is an arithmetic number, because the mean of its divisors is an integer number (276507).

2^1103573 is an apocalyptic number.

It is an amenable number.

1103573 is a deficient number, since it is larger than the sum of its proper divisors (2455).

1103573 is an equidigital number, since it uses as much as digits as its factorization.

1103573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 1103573 is about 1050.5108281213. The cubic root of 1103573 is about 103.3396585329.

Adding to 1103573 its reverse (3753011), we get a palindrome (4856584).

The spelling of 1103573 in words is "one million, one hundred three thousand, five hundred seventy-three".