1285022 has 8 divisors (see below), whose sum is σ = 1974672. Its totient is φ = 626800.

The previous prime is 1285021. The next prime is 1285049. The reversal of 1285022 is 2205821.

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

It is a junction number, because it is equal to n+sod(n) for n = 1284985 and 1285003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285021) 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, 7754 + ... + 7917.

It is an arithmetic number, because the mean of its divisors is an integer number (246834).

2^1285022 is an apocalyptic number.

1285022 is a deficient number, since it is larger than the sum of its proper divisors (689650).

1285022 is a wasteful number, since it uses less digits than its factorization.

1285022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15714.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1285022 is about 1133.5881086179. The cubic root of 1285022 is about 108.7185173324.

The spelling of 1285022 in words is "one million, two hundred eighty-five thousand, twenty-two".