315335221 has 8 divisors (see below), whose sum is σ = 332242560. Its totient is φ = 298694352.

The previous prime is 315335219. The next prime is 315335233. The reversal of 315335221 is 122533513.

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 315335221 - 2¹ = 315335219 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 (315335021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64186 + ... + 68923.

It is an arithmetic number, because the mean of its divisors is an integer number (41530320).

Almost surely, 2^315335221 is an apocalyptic number.

It is an amenable number.

315335221 is a deficient number, since it is larger than the sum of its proper divisors (16907339).

315335221 is a wasteful number, since it uses less digits than its factorization.

315335221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133235.

The product of its digits is 2700, while the sum is 25.

The square root of 315335221 is about 17757.6806199458. The cubic root of 315335221 is about 680.6504884148.

Adding to 315335221 its reverse (122533513), we get a palindrome (437868734).

The spelling of 315335221 in words is "three hundred fifteen million, three hundred thirty-five thousand, two hundred twenty-one".