315250321 has 8 divisors (see below), whose sum is σ = 319017600. Its totient is φ = 311503920.

The previous prime is 315250241. The next prime is 315250333. The reversal of 315250321 is 123052513.

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

It is a cyclic number.

It is not a de Polignac number, because 315250321 - 2¹¹ = 315248273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315250292 and 315250301.

It is not an unprimeable number, because it can be changed into a prime (315256321) 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 7 ways as a sum of consecutive naturals, for example, 26275 + ... + 36343.

It is an arithmetic number, because the mean of its divisors is an integer number (39877200).

Almost surely, 2^315250321 is an apocalyptic number.

It is an amenable number.

315250321 is a deficient number, since it is larger than the sum of its proper divisors (3767279).

315250321 is a wasteful number, since it uses less digits than its factorization.

315250321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10439.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 315250321 is about 17755.2899441265. The cubic root of 315250321 is about 680.5893974344.

The spelling of 315250321 in words is "three hundred fifteen million, two hundred fifty thousand, three hundred twenty-one".