116231909 has 4 divisors (see below), whose sum is σ = 116318304. Its totient is φ = 116145516.

The previous prime is 116231897. The next prime is 116231917. The reversal of 116231909 is 909132611.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116231909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116230909) 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 3 ways as a sum of consecutive naturals, for example, 41147 + ... + 43880.

It is an arithmetic number, because the mean of its divisors is an integer number (29079576).

Almost surely, 2^116231909 is an apocalyptic number.

It is an amenable number.

116231909 is a deficient number, since it is larger than the sum of its proper divisors (86395).

116231909 is an equidigital number, since it uses as much as digits as its factorization.

116231909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86394.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 116231909 is about 10781.0903437454. The cubic root of 116231909 is about 488.0246854954.

The spelling of 116231909 in words is "one hundred sixteen million, two hundred thirty-one thousand, nine hundred nine".