117326209 has 16 divisors (see below), whose sum is σ = 157530240. Its totient is φ = 84389760.

The previous prime is 117326207. The next prime is 117326239. The reversal of 117326209 is 902623711.

It is not a de Polignac number, because 117326209 - 2¹ = 117326207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117326201) by changing a digit.

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, 57604 + ... + 59605.

It is an arithmetic number, because the mean of its divisors is an integer number (9845640).

Almost surely, 2^117326209 is an apocalyptic number.

It is an amenable number.

117326209 is a deficient number, since it is larger than the sum of its proper divisors (40204031).

117326209 is a wasteful number, since it uses less digits than its factorization.

117326209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117240.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 117326209 is about 10831.7223468846. The cubic root of 117326209 is about 489.5514554181.

The spelling of 117326209 in words is "one hundred seventeen million, three hundred twenty-six thousand, two hundred nine".