312016109 has 8 divisors (see below), whose sum is σ = 323675520. Its totient is φ = 300549600.

The previous prime is 312016093. The next prime is 312016129. The reversal of 312016109 is 901610213.

It is a happy number.

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 312016109 - 2⁴ = 312016093 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 (312016129) 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, 44927 + ... + 51404.

It is an arithmetic number, because the mean of its divisors is an integer number (40459440).

Almost surely, 2^312016109 is an apocalyptic number.

It is an amenable number.

312016109 is a deficient number, since it is larger than the sum of its proper divisors (11659411).

312016109 is an equidigital number, since it uses as much as digits as its factorization.

312016109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96451.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 312016109 is about 17663.9777230385. The cubic root of 312016109 is about 678.2539612706.

The spelling of 312016109 in words is "three hundred twelve million, sixteen thousand, one hundred nine".