1285002 has 12 divisors (see below), whose sum is σ = 2784210. Its totient is φ = 428328.

The previous prime is 1284991. The next prime is 1285021. The reversal of 1285002 is 2005821.

It can be written as a sum of positive squares in only one way, i.e., 690561 + 594441 = 831^2 + 771^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 71389 = 1285002 / (1 + 2 + 8 + 5 + 0 + 0 + 2).

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 5 ways as a sum of consecutive naturals, for example, 35677 + ... + 35712.

2^1285002 is an apocalyptic number.

1285002 is an abundant number, since it is smaller than the sum of its proper divisors (1499208).

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

1285002 is a wasteful number, since it uses less digits than its factorization.

1285002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71397 (or 71394 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1285002 is about 1133.5792870373. The cubic root of 1285002 is about 108.7179533001.

The spelling of 1285002 in words is "one million, two hundred eighty-five thousand, two".