1144481 has 4 divisors (see below), whose sum is σ = 1232532. Its totient is φ = 1056432.

The previous prime is 1144477. The next prime is 1144483. The reversal of 1144481 is 1844411.

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 490000 + 654481 = 700^2 + 809^2 .

It is not a de Polignac number, because 1144481 - 2² = 1144477 is a prime.

It is a super-2 number, since 2×1144481² = 2619673518722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144483) 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, 44006 + ... + 44031.

It is an arithmetic number, because the mean of its divisors is an integer number (308133).

2^1144481 is an apocalyptic number.

It is an amenable number.

1144481 is a deficient number, since it is larger than the sum of its proper divisors (88051).

1144481 is an equidigital number, since it uses as much as digits as its factorization.

1144481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88050.

The product of its digits is 512, while the sum is 23.

The square root of 1144481 is about 1069.8041876904. The cubic root of 1144481 is about 104.6010865280.

Adding to 1144481 its reverse (1844411), we get a palindrome (2988892).

The spelling of 1144481 in words is "one million, one hundred forty-four thousand, four hundred eighty-one".