1144021 has 8 divisors (see below), whose sum is σ = 1198080. Its totient is φ = 1090992.

The previous prime is 1144019. The next prime is 1144037. The reversal of 1144021 is 1204411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144021 - 2¹ = 1144019 is a prime.

It is a Duffinian number.

1144021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1143992 and 1144010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144001) 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 7 ways as a sum of consecutive naturals, for example, 2796 + ... + 3178.

It is an arithmetic number, because the mean of its divisors is an integer number (149760).

2^1144021 is an apocalyptic number.

It is an amenable number.

1144021 is a deficient number, since it is larger than the sum of its proper divisors (54059).

1144021 is a wasteful number, since it uses less digits than its factorization.

1144021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1144021 is about 1069.5891734680. The cubic root of 1144021 is about 104.5870705831.

Adding to 1144021 its reverse (1204411), we get a palindrome (2348432).

The spelling of 1144021 in words is "one million, one hundred forty-four thousand, twenty-one".