1144663111 has 2 divisors, whose sum is σ = 1144663112. Its totient is φ = 1144663110.

The previous prime is 1144663081. The next prime is 1144663217. The reversal of 1144663111 is 1113664411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1144663111 - 2¹³ = 1144654919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1144663111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144666111) 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, 572331555 + 572331556.

It is an arithmetic number, because the mean of its divisors is an integer number (572331556).

Almost surely, 2^1144663111 is an apocalyptic number.

1144663111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144663111 is an equidigital number, since it uses as much as digits as its factorization.

1144663111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 1144663111 is about 33832.8702743353. The cubic root of 1144663111 is about 1046.0663431142.

The spelling of 1144663111 in words is "one billion, one hundred forty-four million, six hundred sixty-three thousand, one hundred eleven".