315397983 has 8 divisors (see below), whose sum is σ = 421659568. Its totient is φ = 209700864.

The previous prime is 315397981. The next prime is 315398047. The reversal of 315397983 is 389793513.

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

It is not a de Polignac number, because 315397983 - 2¹ = 315397981 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 (315397981) 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, 139810 + ... + 142047.

It is an arithmetic number, because the mean of its divisors is an integer number (52707446).

Almost surely, 2^315397983 is an apocalyptic number.

315397983 is a deficient number, since it is larger than the sum of its proper divisors (106261585).

315397983 is a wasteful number, since it uses less digits than its factorization.

315397983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282233.

The product of its digits is 612360, while the sum is 48.

The square root of 315397983 is about 17759.4477110072. The cubic root of 315397983 is about 680.6956426393.

The spelling of 315397983 in words is "three hundred fifteen million, three hundred ninety-seven thousand, nine hundred eighty-three".