315052221 has 8 divisors (see below), whose sum is σ = 458257824. Its totient is φ = 190940720.

The previous prime is 315052219. The next prime is 315052247. The reversal of 315052221 is 122250513.

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 315052221 - 2¹ = 315052219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315052261) 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, 4773486 + ... + 4773551.

It is an arithmetic number, because the mean of its divisors is an integer number (57282228).

Almost surely, 2^315052221 is an apocalyptic number.

It is an amenable number.

315052221 is a deficient number, since it is larger than the sum of its proper divisors (143205603).

315052221 is a wasteful number, since it uses less digits than its factorization.

315052221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9547051.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 315052221 is about 17749.7104483425. The cubic root of 315052221 is about 680.4468091468.

The spelling of 315052221 in words is "three hundred fifteen million, fifty-two thousand, two hundred twenty-one".