1603222 has 4 divisors (see below), whose sum is σ = 2404836. Its totient is φ = 801610.

The previous prime is 1603193. The next prime is 1603237. The reversal of 1603222 is 2223061.

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

It is a junction number, because it is equal to n+sod(n) for n = 1603196 and 1603205.

It is a congruent number.

It is an unprimeable number.

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, 400804 + ... + 400807.

It is an arithmetic number, because the mean of its divisors is an integer number (601209).

2^1603222 is an apocalyptic number.

1603222 is a deficient number, since it is larger than the sum of its proper divisors (801614).

1603222 is an equidigital number, since it uses as much as digits as its factorization.

1603222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801613.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1603222 is about 1266.1840308581. The cubic root of 1603222 is about 117.0391667639.

Adding to 1603222 its reverse (2223061), we get a palindrome (3826283).

The spelling of 1603222 in words is "one million, six hundred three thousand, two hundred twenty-two".