1144369 has 4 divisors (see below), whose sum is σ = 1183860. Its totient is φ = 1104880.

The previous prime is 1144357. The next prime is 1144379. The reversal of 1144369 is 9634411.

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

It can be written as a sum of positive squares in 2 ways, for example, as 471969 + 672400 = 687^2 + 820^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144369 - 2¹¹ = 1142321 is a prime.

It is a super-2 number, since 2×1144369² = 2619160816322, which contains 22 as substring.

It is a Duffinian number.

1144369 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1144349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19702 + ... + 19759.

It is an arithmetic number, because the mean of its divisors is an integer number (295965).

2^1144369 is an apocalyptic number.

It is an amenable number.

1144369 is a deficient number, since it is larger than the sum of its proper divisors (39491).

1144369 is an equidigital number, since it uses as much as digits as its factorization.

1144369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39490.

The product of its digits is 2592, while the sum is 28.

The square root of 1144369 is about 1069.7518403817. The cubic root of 1144369 is about 104.5976742960.

The spelling of 1144369 in words is "one million, one hundred forty-four thousand, three hundred sixty-nine".