1080503 has 4 divisors (see below), whose sum is σ = 1144080. Its totient is φ = 1016928.

The previous prime is 1080491. The next prime is 1080523. The reversal of 1080503 is 3050801.

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

It is a cyclic number.

It is not a de Polignac number, because 1080503 - 2⁶ = 1080439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 63559 = 1080503 / (1 + 0 + 8 + 0 + 5 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31763 + ... + 31796.

It is an arithmetic number, because the mean of its divisors is an integer number (286020).

2^1080503 is an apocalyptic number.

1080503 is a deficient number, since it is larger than the sum of its proper divisors (63577).

1080503 is an equidigital number, since it uses as much as digits as its factorization.

1080503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63576.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1080503 is about 1039.4724623577. The cubic root of 1080503 is about 102.6144824377.

The spelling of 1080503 in words is "one million, eighty thousand, five hundred three".