1078811117 has 2 divisors, whose sum is σ = 1078811118. Its totient is φ = 1078811116.

The previous prime is 1078811093. The next prime is 1078811137. The reversal of 1078811117 is 7111188701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 945501001 + 133310116 = 30749^2 + 11546^2 .

It is a cyclic number.

It is not a de Polignac number, because 1078811117 - 2⁶ = 1078811053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1078811137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539405558 + 539405559.

It is an arithmetic number, because the mean of its divisors is an integer number (539405559).

Almost surely, 2^1078811117 is an apocalyptic number.

It is an amenable number.

1078811117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078811117 is an equidigital number, since it uses as much as digits as its factorization.

1078811117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 35.

The square root of 1078811117 is about 32845.2601907794. The cubic root of 1078811117 is about 1025.6089554573.

Adding to 1078811117 its reverse (7111188701), we get a palindrome (8189999818).

The spelling of 1078811117 in words is "one billion, seventy-eight million, eight hundred eleven thousand, one hundred seventeen".