1144867441 has 2 divisors, whose sum is σ = 1144867442. Its totient is φ = 1144867440.

The previous prime is 1144867411. The next prime is 1144867543. The reversal of 1144867441 is 1447684411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 629759025 + 515108416 = 25095^2 + 22696^2 .

It is an emirp because it is prime and its reverse (1447684411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144867441 - 2¹³ = 1144859249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1144867394 and 1144867403.

It is not a weakly prime, because it can be changed into another prime (1144867411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572433720 + 572433721.

It is an arithmetic number, because the mean of its divisors is an integer number (572433721).

Almost surely, 2^1144867441 is an apocalyptic number.

It is an amenable number.

1144867441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144867441 is an equidigital number, since it uses as much as digits as its factorization.

1144867441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 40.

The square root of 1144867441 is about 33835.8898360897. The cubic root of 1144867441 is about 1046.1285826840.

The spelling of 1144867441 in words is "one billion, one hundred forty-four million, eight hundred sixty-seven thousand, four hundred forty-one".