1123522 has 4 divisors (see below), whose sum is σ = 1685286. Its totient is φ = 561760.

The previous prime is 1123517. The next prime is 1123531. The reversal of 1123522 is 2253211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2253211 = 739 ⋅3049.

It can be written as a sum of positive squares in only one way, i.e., 737881 + 385641 = 859^2 + 621^2 .

It is a d-powerful number, because it can be written as 1 + 1 + 2¹² + 3⁷ + 5⁵ + 2¹⁶ + 2²⁰ .

It is a junction number, because it is equal to n+sod(n) for n = 1123496 and 1123505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280879 + ... + 280882.

2^1123522 is an apocalyptic number.

1123522 is a deficient number, since it is larger than the sum of its proper divisors (561764).

1123522 is an equidigital number, since it uses as much as digits as its factorization.

1123522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561763.

The product of its digits is 120, while the sum is 16.

The square root of 1123522 is about 1059.9632069086. The cubic root of 1123522 is about 103.9586250605.

Adding to 1123522 its reverse (2253211), we get a palindrome (3376733).

The spelling of 1123522 in words is "one million, one hundred twenty-three thousand, five hundred twenty-two".