11154545459 has 2 divisors, whose sum is σ = 11154545460. Its totient is φ = 11154545458.

The previous prime is 11154545447. The next prime is 11154545477. The reversal of 11154545459 is 95454545111.

It is a weak prime.

It is an emirp because it is prime and its reverse (95454545111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11154545459 - 2⁴ = 11154545443 is a prime.

It is not a weakly prime, because it can be changed into another prime (11154545159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5577272729 + 5577272730.

It is an arithmetic number, because the mean of its divisors is an integer number (5577272730).

Almost surely, 2^11154545459 is an apocalyptic number.

11154545459 is a deficient number, since it is larger than the sum of its proper divisors (1).

11154545459 is an equidigital number, since it uses as much as digits as its factorization.

11154545459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360000, while the sum is 44.

The spelling of 11154545459 in words is "eleven billion, one hundred fifty-four million, five hundred forty-five thousand, four hundred fifty-nine".