1144165 has 16 divisors (see below), whose sum is σ = 1524096. Its totient is φ = 817600.

The previous prime is 1144163. The next prime is 1144183. The reversal of 1144165 is 5614411.

It is not a de Polignac number, because 1144165 - 2¹ = 1144163 is a prime.

It is a super-2 number, since 2×1144165² = 2618227094450, which contains 22 as substring.

It is a Duffinian number.

1144165 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144163) 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, 3759 + ... + 4051.

It is an arithmetic number, because the mean of its divisors is an integer number (95256).

2^1144165 is an apocalyptic number.

It is an amenable number.

1144165 is a deficient number, since it is larger than the sum of its proper divisors (379931).

1144165 is a wasteful number, since it uses less digits than its factorization.

1144165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380.

The product of its digits is 480, while the sum is 22.

The square root of 1144165 is about 1069.6564869153. The cubic root of 1144165 is about 104.5914585872.

Adding to 1144165 its reverse (5614411), we get a palindrome (6758576).

The spelling of 1144165 in words is "one million, one hundred forty-four thousand, one hundred sixty-five".