1117009205 has 16 divisors (see below), whose sum is σ = 1490087424. Its totient is φ = 798258240.

The previous prime is 1117009199. The next prime is 1117009217. The reversal of 1117009205 is 5029007111.

It is not a de Polignac number, because 1117009205 - 2¹⁶ = 1116943669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 275159 + ... + 279188.

It is an arithmetic number, because the mean of its divisors is an integer number (93130464).

Almost surely, 2^1117009205 is an apocalyptic number.

It is an amenable number.

1117009205 is a deficient number, since it is larger than the sum of its proper divisors (373078219).

1117009205 is a wasteful number, since it uses less digits than its factorization.

1117009205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554396.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 1117009205 is about 33421.6876444024. The cubic root of 1117009205 is about 1037.5736102996.

The spelling of 1117009205 in words is "one billion, one hundred seventeen million, nine thousand, two hundred five".