1444540541 has 8 divisors (see below), whose sum is σ = 1529907264. Its totient is φ = 1359217600.

The previous prime is 1444540529. The next prime is 1444540543. The reversal of 1444540541 is 1450454441.

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 1444540541 - 2³⁰ = 370798717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1444540498 and 1444540507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444540543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77456 + ... + 94278.

It is an arithmetic number, because the mean of its divisors is an integer number (191238408).

Almost surely, 2^1444540541 is an apocalyptic number.

It is an amenable number.

1444540541 is a deficient number, since it is larger than the sum of its proper divisors (85366723).

1444540541 is a wasteful number, since it uses less digits than its factorization.

1444540541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21891.

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 1444540541 is about 38007.1117160986. Note that the first 3 decimals coincide. The cubic root of 1444540541 is about 1130.4288817621.

Adding to 1444540541 its reverse (1450454441), we get a palindrome (2894994982).

The spelling of 1444540541 in words is "one billion, four hundred forty-four million, five hundred forty thousand, five hundred forty-one".