1022117 has 4 divisors (see below), whose sum is σ = 1024140. Its totient is φ = 1020096.

The previous prime is 1022113. The next prime is 1022123. The reversal of 1022117 is 7112201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 98596 + 923521 = 314^2 + 961^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022117 - 2² = 1022113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022113) 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, 503 + ... + 1515.

It is an arithmetic number, because the mean of its divisors is an integer number (256035).

2^1022117 is an apocalyptic number.

It is an amenable number.

1022117 is a deficient number, since it is larger than the sum of its proper divisors (2023).

1022117 is a wasteful number, since it uses less digits than its factorization.

1022117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1022117 is about 1010.9980217587. The cubic root of 1022117 is about 100.7318640171.

Adding to 1022117 its reverse (7112201), we get a palindrome (8134318).

The spelling of 1022117 in words is "one million, twenty-two thousand, one hundred seventeen".