312718005 has 24 divisors (see below), whose sum is σ = 565613568. Its totient is φ = 159530976.

The previous prime is 312717989. The next prime is 312718013. The reversal of 312718005 is 500817213.

It is not a de Polignac number, because 312718005 - 2⁴ = 312717989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312718005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150037 + ... + 152106.

It is an arithmetic number, because the mean of its divisors is an integer number (23567232).

Almost surely, 2^312718005 is an apocalyptic number.

It is an amenable number.

312718005 is a deficient number, since it is larger than the sum of its proper divisors (252895563).

312718005 is a wasteful number, since it uses less digits than its factorization.

312718005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302177 (or 302174 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 312718005 is about 17683.8345671972. The cubic root of 312718005 is about 678.7621692313.

The spelling of 312718005 in words is "three hundred twelve million, seven hundred eighteen thousand, five".