1228522 has 16 divisors (see below), whose sum is σ = 2037312. Its totient is φ = 552640.

The previous prime is 1228519. The next prime is 1228537. The reversal of 1228522 is 2258221.

It is a junction number, because it is equal to n+sod(n) for n = 1228493 and 1228502.

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 in 7 ways as a sum of consecutive naturals, for example, 4 + ... + 1567.

It is an arithmetic number, because the mean of its divisors is an integer number (127332).

2^1228522 is an apocalyptic number.

1228522 is a deficient number, since it is larger than the sum of its proper divisors (808790).

1228522 is a wasteful number, since it uses less digits than its factorization.

1228522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613.

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

The square root of 1228522 is about 1108.3871164895. The cubic root of 1228522 is about 107.1011940446.

The spelling of 1228522 in words is "one million, two hundred twenty-eight thousand, five hundred twenty-two".