1118953573 has 2 divisors, whose sum is σ = 1118953574. Its totient is φ = 1118953572.

The previous prime is 1118953571. The next prime is 1118953609. The reversal of 1118953573 is 3753598111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 943841284 + 175112289 = 30722^2 + 13233^2 .

It is an emirp because it is prime and its reverse (3753598111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1118953573 - 2¹ = 1118953571 is a prime.

Together with 1118953571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118953571) 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, 559476786 + 559476787.

It is an arithmetic number, because the mean of its divisors is an integer number (559476787).

Almost surely, 2^1118953573 is an apocalyptic number.

It is an amenable number.

1118953573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118953573 is an equidigital number, since it uses as much as digits as its factorization.

1118953573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 43.

The square root of 1118953573 is about 33450.7634143079. The cubic root of 1118953573 is about 1038.1752930419.

The spelling of 1118953573 in words is "one billion, one hundred eighteen million, nine hundred fifty-three thousand, five hundred seventy-three".