312034109 has 2 divisors, whose sum is σ = 312034110. Its totient is φ = 312034108.

The previous prime is 312034103. The next prime is 312034141. The reversal of 312034109 is 901430213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288898009 + 23136100 = 16997^2 + 4810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312034109 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312034103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156017054 + 156017055.

It is an arithmetic number, because the mean of its divisors is an integer number (156017055).

Almost surely, 2^312034109 is an apocalyptic number.

It is an amenable number.

312034109 is a deficient number, since it is larger than the sum of its proper divisors (1).

312034109 is an equidigital number, since it uses as much as digits as its factorization.

312034109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 312034109 is about 17664.4872272025. The cubic root of 312034109 is about 678.2670036918.

The spelling of 312034109 in words is "three hundred twelve million, thirty-four thousand, one hundred nine".