116020209 has 4 divisors (see below), whose sum is σ = 154693616. Its totient is φ = 77346804.

The previous prime is 116020199. The next prime is 116020217. The reversal of 116020209 is 902020611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 116020209 - 2⁹ = 116019697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116020279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19336699 + ... + 19336704.

It is an arithmetic number, because the mean of its divisors is an integer number (38673404).

Almost surely, 2^116020209 is an apocalyptic number.

It is an amenable number.

116020209 is a deficient number, since it is larger than the sum of its proper divisors (38673407).

116020209 is an equidigital number, since it uses as much as digits as its factorization.

116020209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38673406.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 116020209 is about 10771.2677526835. The cubic root of 116020209 is about 487.7282160927.

The spelling of 116020209 in words is "one hundred sixteen million, twenty thousand, two hundred nine".