1117285117 has 8 divisors (see below), whose sum is σ = 1244721240. Its totient is φ = 995776320.

The previous prime is 1117285093. The next prime is 1117285121. The reversal of 1117285117 is 7115827111.

It can be written as a sum of positive squares in 4 ways, for example, as 249039961 + 868245156 = 15781^2 + 29466^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117285117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117285157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481434 + ... + 1482187.

It is an arithmetic number, because the mean of its divisors is an integer number (155590155).

Almost surely, 2^1117285117 is an apocalyptic number.

It is an amenable number.

1117285117 is a deficient number, since it is larger than the sum of its proper divisors (127436123).

1117285117 is a wasteful number, since it uses less digits than its factorization.

1117285117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963663.

The product of its digits is 3920, while the sum is 34.

The square root of 1117285117 is about 33425.8151284303. The cubic root of 1117285117 is about 1037.6590334816.

The spelling of 1117285117 in words is "one billion, one hundred seventeen million, two hundred eighty-five thousand, one hundred seventeen".