1003128 has 48 divisors (see below), whose sum is σ = 2920680. Its totient is φ = 286272.

The previous prime is 1003111. The next prime is 1003133. The reversal of 1003128 is 8213001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 750 + ... + 1602.

2^1003128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1003128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1460340).

1003128 is an abundant number, since it is smaller than the sum of its proper divisors (1917552).

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

1003128 is a wasteful number, since it uses less digits than its factorization.

1003128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1003128 is about 1001.5627788611. The cubic root of 1003128 is about 100.1041581398.

Adding to 1003128 its reverse (8213001), we get a palindrome (9216129).

The spelling of 1003128 in words is "one million, three thousand, one hundred twenty-eight".