1144217 has 4 divisors (see below), whose sum is σ = 1165860. Its totient is φ = 1122576.

The previous prime is 1144211. The next prime is 1144223. The reversal of 1144217 is 7124411.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1144211) and next prime (1144223).

It can be written as a sum of positive squares in 2 ways, for example, as 687241 + 456976 = 829^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144217 - 2⁶ = 1144153 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144211) 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, 10742 + ... + 10847.

It is an arithmetic number, because the mean of its divisors is an integer number (291465).

2^1144217 is an apocalyptic number.

It is an amenable number.

1144217 is a deficient number, since it is larger than the sum of its proper divisors (21643).

1144217 is an equidigital number, since it uses as much as digits as its factorization.

1144217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21642.

The product of its digits is 224, while the sum is 20.

The square root of 1144217 is about 1069.6807935080. The cubic root of 1144217 is about 104.5930430537.

Adding to 1144217 its reverse (7124411), we get a palindrome (8268628).

The spelling of 1144217 in words is "one million, one hundred forty-four thousand, two hundred seventeen".