315303225 has 24 divisors (see below), whose sum is σ = 539280960. Its totient is φ = 162361920.

The previous prime is 315303223. The next prime is 315303259. The reversal of 315303225 is 522303513.

It is a happy number.

It is not a de Polignac number, because 315303225 - 2¹ = 315303223 is a prime.

It is a super-2 number, since 2×315303225² = 198832247390801250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315303195 and 315303204.

It is not an unprimeable number, because it can be changed into a prime (315303223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70309 + ... + 74658.

It is an arithmetic number, because the mean of its divisors is an integer number (22470040).

Almost surely, 2^315303225 is an apocalyptic number.

It is an amenable number.

315303225 is a deficient number, since it is larger than the sum of its proper divisors (223977735).

315303225 is a wasteful number, since it uses less digits than its factorization.

315303225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145009 (or 145004 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 315303225 is about 17756.7796911490. The cubic root of 315303225 is about 680.6274665339.

Adding to 315303225 its reverse (522303513), we get a palindrome (837606738).

The spelling of 315303225 in words is "three hundred fifteen million, three hundred three thousand, two hundred twenty-five".