1285016 has 8 divisors (see below), whose sum is σ = 2409420. Its totient is φ = 642504.

The previous prime is 1284991. The next prime is 1285021. The reversal of 1285016 is 6105821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1285016² = 3302532240512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1284982 and 1285000.

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 as a sum of consecutive naturals, namely, 80306 + ... + 80321.

2^1285016 is an apocalyptic number.

It is an amenable number.

1285016 is a deficient number, since it is larger than the sum of its proper divisors (1124404).

1285016 is a wasteful number, since it uses less digits than its factorization.

1285016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160633 (or 160629 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1285016 is about 1133.5854621510. The cubic root of 1285016 is about 108.7183481233.

The spelling of 1285016 in words is "one million, two hundred eighty-five thousand, sixteen".