1144104581 has 2 divisors, whose sum is σ = 1144104582. Its totient is φ = 1144104580.

The previous prime is 1144104487. The next prime is 1144104583. The reversal of 1144104581 is 1854014411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 669256900 + 474847681 = 25870^2 + 21791^2 .

It is an emirp because it is prime and its reverse (1854014411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144104581 - 2¹⁰ = 1144103557 is a prime.

It is a super-2 number, since 2×1144104581² = 2617950584530371122, which contains 22 as substring.

Together with 1144104583, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144104583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572052290 + 572052291.

It is an arithmetic number, because the mean of its divisors is an integer number (572052291).

Almost surely, 2^1144104581 is an apocalyptic number.

It is an amenable number.

1144104581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144104581 is an equidigital number, since it uses as much as digits as its factorization.

1144104581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 1144104581 is about 33824.6150162866. The cubic root of 1144104581 is about 1045.8961752912.

Adding to 1144104581 its reverse (1854014411), we get a palindrome (2998118992).

The spelling of 1144104581 in words is "one billion, one hundred forty-four million, one hundred four thousand, five hundred eighty-one".