1128303 has 32 divisors (see below), whose sum is σ = 1900800. Its totient is φ = 655200.

The previous prime is 1128301. The next prime is 1128313. The reversal of 1128303 is 3038211.

It is not a de Polignac number, because 1128303 - 2¹ = 1128301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8548 + ... + 8678.

It is an arithmetic number, because the mean of its divisors is an integer number (59400).

2^1128303 is an apocalyptic number.

1128303 is a deficient number, since it is larger than the sum of its proper divisors (772497).

1128303 is a wasteful number, since it uses less digits than its factorization.

1128303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1128303 is about 1062.2160797126. The cubic root of 1128303 is about 104.1058771358.

It can be divided in two parts, 1128 and 303, that added together give a triangular number (1431 = T₅₃).

The spelling of 1128303 in words is "one million, one hundred twenty-eight thousand, three hundred three".