116206909 has 8 divisors (see below), whose sum is σ = 143024000. Its totient is φ = 91943856.

The previous prime is 116206903. The next prime is 116206921. The reversal of 116206909 is 909602611.

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 116206909 - 2³ = 116206901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116206901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638409 + ... + 638590.

It is an arithmetic number, because the mean of its divisors is an integer number (17878000).

Almost surely, 2^116206909 is an apocalyptic number.

It is an amenable number.

116206909 is a deficient number, since it is larger than the sum of its proper divisors (26817091).

116206909 is a wasteful number, since it uses less digits than its factorization.

116206909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277019.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 116206909 is about 10779.9308439340. The cubic root of 116206909 is about 487.9896936930.

It can be divided in two parts, 116 and 206909, that added together give a square (207025 = 455²).

The spelling of 116206909 in words is "one hundred sixteen million, two hundred six thousand, nine hundred nine".