1117185385 has 8 divisors (see below), whose sum is σ = 1341137160. Its totient is φ = 893405184.

The previous prime is 1117185337. The next prime is 1117185401. The reversal of 1117185385 is 5835817111.

It can be written as a sum of positive squares in 4 ways, for example, as 21609 + 1117163776 = 147^2 + 33424^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1117185385 - 2¹⁹ = 1116661097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28102 + ... + 54991.

It is an arithmetic number, because the mean of its divisors is an integer number (167642145).

Almost surely, 2^1117185385 is an apocalyptic number.

It is an amenable number.

1117185385 is a deficient number, since it is larger than the sum of its proper divisors (223951775).

1117185385 is an equidigital number, since it uses as much as digits as its factorization.

1117185385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85787.

The product of its digits is 33600, while the sum is 40.

The square root of 1117185385 is about 33424.3232541812. The cubic root of 1117185385 is about 1037.6281577787.

The spelling of 1117185385 in words is "one billion, one hundred seventeen million, one hundred eighty-five thousand, three hundred eighty-five".