1118968129 has 2 divisors, whose sum is σ = 1118968130. Its totient is φ = 1118968128.

The previous prime is 1118968117. The next prime is 1118968181. The reversal of 1118968129 is 9218698111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1032979600 + 85988529 = 32140^2 + 9273^2 .

It is a cyclic number.

It is not a de Polignac number, because 1118968129 - 2¹³ = 1118959937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1118968199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559484064 + 559484065.

It is an arithmetic number, because the mean of its divisors is an integer number (559484065).

Almost surely, 2^1118968129 is an apocalyptic number.

It is an amenable number.

1118968129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118968129 is an equidigital number, since it uses as much as digits as its factorization.

1118968129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 46.

The square root of 1118968129 is about 33450.9809871101. The cubic root of 1118968129 is about 1038.1797947521.

The spelling of 1118968129 in words is "one billion, one hundred eighteen million, nine hundred sixty-eight thousand, one hundred twenty-nine".