1022506 has 8 divisors (see below), whose sum is σ = 1541664. Its totient is φ = 508620.

The previous prime is 1022503. The next prime is 1022507. The reversal of 1022506 is 6052201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022506.

It is not an unprimeable number, because it can be changed into a prime (1022501) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 790 + ... + 1633.

It is an arithmetic number, because the mean of its divisors is an integer number (192708).

2^1022506 is an apocalyptic number.

1022506 is a deficient number, since it is larger than the sum of its proper divisors (519158).

1022506 is a wasteful number, since it uses less digits than its factorization.

1022506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636.

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

The square root of 1022506 is about 1011.1903876125. The cubic root of 1022506 is about 100.7446413297.

Adding to 1022506 its reverse (6052201), we get a palindrome (7074707).

The spelling of 1022506 in words is "one million, twenty-two thousand, five hundred six".