1144863 has 6 divisors (see below), whose sum is σ = 1653704. Its totient is φ = 763236.

The previous prime is 1144837. The next prime is 1144867. The reversal of 1144863 is 3684411.

It is not a de Polignac number, because 1144863 - 2⁸ = 1144607 is a prime.

It is a super-2 number, since 2×1144863² = 2621422577538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144867) 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 5 ways as a sum of consecutive naturals, for example, 63595 + ... + 63612.

2^1144863 is an apocalyptic number.

1144863 is a deficient number, since it is larger than the sum of its proper divisors (508841).

1144863 is a wasteful number, since it uses less digits than its factorization.

1144863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127213 (or 127210 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1144863 is about 1069.9827101407. The cubic root of 1144863 is about 104.6127230020.

It can be divided in two parts, 11448 and 63, that added together give a palindrome (11511).

The spelling of 1144863 in words is "one million, one hundred forty-four thousand, eight hundred sixty-three".