315712905 has 8 divisors (see below), whose sum is σ = 505140672. Its totient is φ = 168380208.

The previous prime is 315712889. The next prime is 315712913. The reversal of 315712905 is 509217513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 315712905 - 2⁴ = 315712889 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10523749 + ... + 10523778.

It is an arithmetic number, because the mean of its divisors is an integer number (63142584).

Almost surely, 2^315712905 is an apocalyptic number.

It is an amenable number.

315712905 is a deficient number, since it is larger than the sum of its proper divisors (189427767).

315712905 is a wasteful number, since it uses less digits than its factorization.

315712905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21047535.

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 315712905 is about 17768.3118218924. The cubic root of 315712905 is about 680.9221233999.

The spelling of 315712905 in words is "three hundred fifteen million, seven hundred twelve thousand, nine hundred five".