1244133441 has 6 divisors (see below), whose sum is σ = 1797081650. Its totient is φ = 829422288.

The previous prime is 1244133367. The next prime is 1244133481. The reversal of 1244133441 is 1443314421.

It can be written as a sum of positive squares in only one way, i.e., 1244043441 + 90000 = 35271^2 + 300^2 .

It is not a de Polignac number, because 1244133441 - 2¹¹ = 1244131393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244133481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69118516 + ... + 69118533.

Almost surely, 2^1244133441 is an apocalyptic number.

It is an amenable number.

1244133441 is a deficient number, since it is larger than the sum of its proper divisors (552948209).

1244133441 is a wasteful number, since it uses less digits than its factorization.

1244133441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138237055 (or 138237052 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1244133441 is about 35272.2758125982. The cubic root of 1244133441 is about 1075.5294859796.

Adding to 1244133441 its reverse (1443314421), we get a palindrome (2687447862).

The spelling of 1244133441 in words is "one billion, two hundred forty-four million, one hundred thirty-three thousand, four hundred forty-one".