312394117 has 4 divisors (see below), whose sum is σ = 357021856. Its totient is φ = 267766380.

The previous prime is 312394039. The next prime is 312394127. The reversal of 312394117 is 711493213.

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 312394117 - 2¹⁹ = 311869829 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 (312394127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22313859 + ... + 22313872.

It is an arithmetic number, because the mean of its divisors is an integer number (89255464).

Almost surely, 2^312394117 is an apocalyptic number.

It is an amenable number.

312394117 is a deficient number, since it is larger than the sum of its proper divisors (44627739).

312394117 is an equidigital number, since it uses as much as digits as its factorization.

312394117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44627738.

The product of its digits is 4536, while the sum is 31.

The square root of 312394117 is about 17674.6744524475. The cubic root of 312394117 is about 678.5277526428.

The spelling of 312394117 in words is "three hundred twelve million, three hundred ninety-four thousand, one hundred seventeen".