117949205 has 16 divisors (see below), whose sum is σ = 154704384. Its totient is φ = 85615680.

The previous prime is 117949199. The next prime is 117949231. The reversal of 117949205 is 502949711.

It is not a de Polignac number, because 117949205 - 2⁴ = 117949189 is a prime.

It is a super-3 number, since 3×117949205³ (a number of 25 digits) contains 333 as substring.

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, 31619 + ... + 35151.

It is an arithmetic number, because the mean of its divisors is an integer number (9669024).

Almost surely, 2^117949205 is an apocalyptic number.

It is an amenable number.

117949205 is a deficient number, since it is larger than the sum of its proper divisors (36755179).

117949205 is a wasteful number, since it uses less digits than its factorization.

117949205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 117949205 is about 10860.4422101496. The cubic root of 117949205 is about 490.4164237359.

The spelling of 117949205 in words is "one hundred seventeen million, nine hundred forty-nine thousand, two hundred five".