117389205 has 12 divisors (see below), whose sum is σ = 203474700. Its totient is φ = 62607552.

The previous prime is 117389189. The next prime is 117389213. The reversal of 117389205 is 502983711.

It can be written as a sum of positive squares in 2 ways, for example, as 57062916 + 60326289 = 7554^2 + 7767^2 .

It is not a de Polignac number, because 117389205 - 2⁴ = 117389189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117389205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1304280 + ... + 1304369.

It is an arithmetic number, because the mean of its divisors is an integer number (16956225).

Almost surely, 2^117389205 is an apocalyptic number.

117389205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117389205 is a deficient number, since it is larger than the sum of its proper divisors (86085495).

117389205 is a wasteful number, since it uses less digits than its factorization.

117389205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608660 (or 2608657 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 117389205 is about 10834.6298967708. The cubic root of 117389205 is about 489.6390580825.

The spelling of 117389205 in words is "one hundred seventeen million, three hundred eighty-nine thousand, two hundred five".