1663122 has 16 divisors (see below), whose sum is σ = 3358080. Its totient is φ = 549072.

The previous prime is 1663117. The next prime is 1663133. The reversal of 1663122 is 2213661.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618 + ... + 1925.

It is an arithmetic number, because the mean of its divisors is an integer number (209880).

2^1663122 is an apocalyptic number.

1663122 is an abundant number, since it is smaller than the sum of its proper divisors (1694958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1663122 is a wasteful number, since it uses less digits than its factorization.

1663122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657.

The product of its digits is 432, while the sum is 21.

The square root of 1663122 is about 1289.6208745209. The cubic root of 1663122 is about 118.4789971501.

Adding to 1663122 its reverse (2213661), we get a palindrome (3876783).

It can be divided in two parts, 16631 and 22, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 1663122 in words is "one million, six hundred sixty-three thousand, one hundred twenty-two".