1285106 has 8 divisors (see below), whose sum is σ = 1994220. Its totient is φ = 620368.

The previous prime is 1285099. The next prime is 1285111. The reversal of 1285106 is 6015821.

It can be written as a sum of positive squares in 2 ways, for example, as 1229881 + 55225 = 1109^2 + 235^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 11021 + ... + 11136.

2^1285106 is an apocalyptic number.

1285106 is a deficient number, since it is larger than the sum of its proper divisors (709114).

1285106 is a wasteful number, since it uses less digits than its factorization.

1285106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22188.

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

The square root of 1285106 is about 1133.6251585070. The cubic root of 1285106 is about 108.7208862040.

The spelling of 1285106 in words is "one million, two hundred eighty-five thousand, one hundred six".