1022005 has 8 divisors (see below), whose sum is σ = 1279872. Its totient is φ = 781968.

The previous prime is 1021973. The next prime is 1022011. The reversal of 1022005 is 5002201.

1022005 = T₄₆ + T₄₇ + ... + T₁₈₃.

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

It is a cyclic number.

It is not a de Polignac number, because 1022005 - 2⁵ = 1021973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021982 and 1022000.

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 in 7 ways as a sum of consecutive naturals, for example, 4329 + ... + 4558.

It is an arithmetic number, because the mean of its divisors is an integer number (159984).

2^1022005 is an apocalyptic number.

It is an amenable number.

1022005 is a deficient number, since it is larger than the sum of its proper divisors (257867).

1022005 is an equidigital number, since it uses as much as digits as its factorization.

1022005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8915.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 1022005 is about 1010.9426294306. The cubic root of 1022005 is about 100.7281846011.

Adding to 1022005 its reverse (5002201), we get a palindrome (6024206).

The spelling of 1022005 in words is "one million, twenty-two thousand, five".