1144661543 has 2 divisors, whose sum is σ = 1144661544. Its totient is φ = 1144661542.

The previous prime is 1144661521. The next prime is 1144661569. The reversal of 1144661543 is 3451664411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1144661543 - 2¹⁶ = 1144596007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144661513) 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 as a sum of consecutive naturals, namely, 572330771 + 572330772.

It is an arithmetic number, because the mean of its divisors is an integer number (572330772).

Almost surely, 2^1144661543 is an apocalyptic number.

1144661543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144661543 is an equidigital number, since it uses as much as digits as its factorization.

1144661543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 1144661543 is about 33832.8471015964. The cubic root of 1144661543 is about 1046.0658654677.

The spelling of 1144661543 in words is "one billion, one hundred forty-four million, six hundred sixty-one thousand, five hundred forty-three".