1144003541 has 4 divisors (see below), whose sum is σ = 1147022400. Its totient is φ = 1140984684.

The previous prime is 1144003529. The next prime is 1144003543. The reversal of 1144003541 is 1453004411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1453004411 = 67 ⋅21686633.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144003541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144003543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1508861 + ... + 1509618.

It is an arithmetic number, because the mean of its divisors is an integer number (286755600).

Almost surely, 2^1144003541 is an apocalyptic number.

It is an amenable number.

1144003541 is a deficient number, since it is larger than the sum of its proper divisors (3018859).

1144003541 is an equidigital number, since it uses as much as digits as its factorization.

1144003541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018858.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1144003541 is about 33823.1213964649. The cubic root of 1144003541 is about 1045.8653854309.

Adding to 1144003541 its reverse (1453004411), we get a palindrome (2597007952).

The spelling of 1144003541 in words is "one billion, one hundred forty-four million, three thousand, five hundred forty-one".