1285852 has 12 divisors (see below), whose sum is σ = 2272816. Its totient is φ = 636480.

The previous prime is 1285847. The next prime is 1285853. The reversal of 1285852 is 2585821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285853) 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 3 ways as a sum of consecutive naturals, for example, 1149 + ... + 1972.

2^1285852 is an apocalyptic number.

It is an amenable number.

1285852 is a deficient number, since it is larger than the sum of its proper divisors (986964).

1285852 is a wasteful number, since it uses less digits than its factorization.

1285852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228 (or 3226 counting only the distinct ones).

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

The square root of 1285852 is about 1133.9541436937. The cubic root of 1285852 is about 108.7419195123.

Subtracting from 1285852 its sum of digits (31), we obtain a palindrome (1285821).

The spelling of 1285852 in words is "one million, two hundred eighty-five thousand, eight hundred fifty-two".