1304522 has 4 divisors (see below), whose sum is σ = 1956786. Its totient is φ = 652260.

The previous prime is 1304519. The next prime is 1304531. The reversal of 1304522 is 2254031.

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., 1207801 + 96721 = 1099^2 + 311^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1304522.

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 as a sum of consecutive naturals, namely, 326129 + ... + 326132.

2^1304522 is an apocalyptic number.

1304522 is a deficient number, since it is larger than the sum of its proper divisors (652264).

1304522 is an equidigital number, since it uses as much as digits as its factorization.

1304522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652263.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1304522 is about 1142.1567318017. The cubic root of 1304522 is about 109.2656874666.

Adding to 1304522 its reverse (2254031), we get a palindrome (3558553).

The spelling of 1304522 in words is "one million, three hundred four thousand, five hundred twenty-two".