1118522117 has 2 divisors, whose sum is σ = 1118522118. Its totient is φ = 1118522116.

The previous prime is 1118522087. The next prime is 1118522161. The reversal of 1118522117 is 7112258111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 563872516 + 554649601 = 23746^2 + 23551^2 .

It is a cyclic number.

It is not a de Polignac number, because 1118522117 - 2¹⁰ = 1118521093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1118522117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118524117) 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, 559261058 + 559261059.

It is an arithmetic number, because the mean of its divisors is an integer number (559261059).

Almost surely, 2^1118522117 is an apocalyptic number.

It is an amenable number.

1118522117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118522117 is an equidigital number, since it uses as much as digits as its factorization.

1118522117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 29.

The square root of 1118522117 is about 33444.3136721327. The cubic root of 1118522117 is about 1038.0418396219.

The spelling of 1118522117 in words is "one billion, one hundred eighteen million, five hundred twenty-two thousand, one hundred seventeen".