1022505 has 16 divisors (see below), whose sum is σ = 1785024. Its totient is φ = 495680.

The previous prime is 1022503. The next prime is 1022507. The reversal of 1022505 is 5052201.

1022505 is nontrivially palindromic in base 14.

It is an interprime number because it is at equal distance from previous prime (1022503) and next prime (1022507).

It is not a de Polignac number, because 1022505 - 2¹ = 1022503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

1022505 is a lucky number.

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 15 ways as a sum of consecutive naturals, for example, 2934 + ... + 3263.

It is an arithmetic number, because the mean of its divisors is an integer number (111564).

2^1022505 is an apocalyptic number.

1022505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1022505 is a deficient number, since it is larger than the sum of its proper divisors (762519).

1022505 is a wasteful number, since it uses less digits than its factorization.

1022505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6216.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 1022505 is about 1011.1898931457. The cubic root of 1022505 is about 100.7446084873.

Adding to 1022505 its reverse (5052201), we get a palindrome (6074706).

The spelling of 1022505 in words is "one million, twenty-two thousand, five hundred five".