1285528 has 32 divisors (see below), whose sum is σ = 2558160. Its totient is φ = 604800.

The previous prime is 1285519. The next prime is 1285547. The reversal of 1285528 is 8255821.

It is a self number, because there is not a number n which added to its sum of digits gives 1285528.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12678 + ... + 12778.

2^1285528 is an apocalyptic number.

It is an amenable number.

1285528 is a deficient number, since it is larger than the sum of its proper divisors (1272632).

1285528 is a wasteful number, since it uses less digits than its factorization.

1285528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 183 counting only the distinct ones).

The product of its digits is 6400, while the sum is 31.

The square root of 1285528 is about 1133.8112717732. The cubic root of 1285528 is about 108.7327854022.

The spelling of 1285528 in words is "one million, two hundred eighty-five thousand, five hundred twenty-eight".