1282522 has 4 divisors (see below), whose sum is σ = 1923786. Its totient is φ = 641260.

The previous prime is 1282517. The next prime is 1282529. The reversal of 1282522 is 2252821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 848241 + 434281 = 921^2 + 659^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1282493 and 1282502.

It is not an unprimeable number, because it can be changed into a prime (1282529) 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 as a sum of consecutive naturals, namely, 320629 + ... + 320632.

2^1282522 is an apocalyptic number.

1282522 is a deficient number, since it is larger than the sum of its proper divisors (641264).

1282522 is an equidigital number, since it uses as much as digits as its factorization.

1282522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641263.

The product of its digits is 640, while the sum is 22.

The square root of 1282522 is about 1132.4848784862. The cubic root of 1282522 is about 108.6479678935.

Subtracting 1282522 from its reverse (2252821), we obtain a cube (970299 = 99³).

The spelling of 1282522 in words is "one million, two hundred eighty-two thousand, five hundred twenty-two".