1028525 has 6 divisors (see below), whose sum is σ = 1275402. Its totient is φ = 822800.

The previous prime is 1028509. The next prime is 1028557. The reversal of 1028525 is 5258201.

It can be written as a sum of positive squares in 3 ways, for example, as 81796 + 946729 = 286^2 + 973^2 .

It is not a de Polignac number, because 1028525 - 2⁴ = 1028509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1028525.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 20546 + ... + 20595.

It is an arithmetic number, because the mean of its divisors is an integer number (212567).

2^1028525 is an apocalyptic number.

It is an amenable number.

1028525 is a deficient number, since it is larger than the sum of its proper divisors (246877).

1028525 is an equidigital number, since it uses as much as digits as its factorization.

1028525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41151 (or 41146 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1028525 is about 1014.1622158215. The cubic root of 1028525 is about 100.9419330965.

The spelling of 1028525 in words is "one million, twenty-eight thousand, five hundred twenty-five".