1111144459 has 2 divisors, whose sum is σ = 1111144460. Its totient is φ = 1111144458.

The previous prime is 1111144451. The next prime is 1111144477. The reversal of 1111144459 is 9544411111.

It is a weak prime.

It is an emirp because it is prime and its reverse (9544411111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111144459 - 2³ = 1111144451 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1111144459.

It is not a weakly prime, because it can be changed into another prime (1111144451) 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, 555572229 + 555572230.

It is an arithmetic number, because the mean of its divisors is an integer number (555572230).

Almost surely, 2^1111144459 is an apocalyptic number.

1111144459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111144459 is an equidigital number, since it uses as much as digits as its factorization.

1111144459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 31.

The square root of 1111144459 is about 33333.8335479134. The cubic root of 1111144459 is about 1035.7545305121.

The spelling of 1111144459 in words is "one billion, one hundred eleven million, one hundred forty-four thousand, four hundred fifty-nine".