1522522 has 4 divisors (see below), whose sum is σ = 2283786. Its totient is φ = 761260.

The previous prime is 1522517. The next prime is 1522541. The reversal of 1522522 is 2252251.

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 + 314721 = 1099^2 + 561^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1522522.

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, 380629 + ... + 380632.

2^1522522 is an apocalyptic number.

1522522 is a deficient number, since it is larger than the sum of its proper divisors (761264).

1522522 is an equidigital number, since it uses as much as digits as its factorization.

1522522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761263.

The product of its digits is 400, while the sum is 19.

The square root of 1522522 is about 1233.9051827430. The cubic root of 1522522 is about 115.0414973114.

Adding to 1522522 its reverse (2252251), we get a palindrome (3774773).

The spelling of 1522522 in words is "one million, five hundred twenty-two thousand, five hundred twenty-two".