1117381217 has 2 divisors, whose sum is σ = 1117381218. Its totient is φ = 1117381216.

The previous prime is 1117381201. The next prime is 1117381231. The reversal of 1117381217 is 7121837111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1086954961 + 30426256 = 32969^2 + 5516^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117381217 - 2⁴ = 1117381201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1117381297) 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, 558690608 + 558690609.

It is an arithmetic number, because the mean of its divisors is an integer number (558690609).

Almost surely, 2^1117381217 is an apocalyptic number.

It is an amenable number.

1117381217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117381217 is an equidigital number, since it uses as much as digits as its factorization.

1117381217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352, while the sum is 32.

The square root of 1117381217 is about 33427.2526092109. The cubic root of 1117381217 is about 1037.6887830274.

The spelling of 1117381217 in words is "one billion, one hundred seventeen million, three hundred eighty-one thousand, two hundred seventeen".