1284522 has 8 divisors (see below), whose sum is σ = 2569056. Its totient is φ = 428172.

The previous prime is 1284511. The next prime is 1284523. The reversal of 1284522 is 2254821.

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

1284522 is an admirable number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1284492 and 1284501.

It is not an unprimeable number, because it can be changed into a prime (1284523) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 107038 + ... + 107049.

It is an arithmetic number, because the mean of its divisors is an integer number (321132).

2^1284522 is an apocalyptic number.

1284522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1284522 is a wasteful number, since it uses less digits than its factorization.

1284522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214092.

The product of its digits is 1280, while the sum is 24.

The square root of 1284522 is about 1133.3675485031. The cubic root of 1284522 is about 108.7044147695.

Subtracting 1284522 from its reverse (2254821), we obtain a cube (970299 = 99³).

The spelling of 1284522 in words is "one million, two hundred eighty-four thousand, five hundred twenty-two".