315541225 has 6 divisors (see below), whose sum is σ = 391271150. Its totient is φ = 252432960.

The previous prime is 315541211. The next prime is 315541229. The reversal of 315541225 is 522145513.

It can be written as a sum of positive squares in 3 ways, for example, as 4477456 + 311063769 = 2116^2 + 17637^2 .

It is not a de Polignac number, because 315541225 - 2¹¹ = 315539177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315541193 and 315541202.

It is not an unprimeable number, because it can be changed into a prime (315541229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6310800 + ... + 6310849.

Almost surely, 2^315541225 is an apocalyptic number.

It is an amenable number.

315541225 is a deficient number, since it is larger than the sum of its proper divisors (75729925).

315541225 is a wasteful number, since it uses less digits than its factorization.

315541225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12621659 (or 12621654 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 315541225 is about 17763.4800925945. The cubic root of 315541225 is about 680.7986759002.

Adding to 315541225 its reverse (522145513), we get a palindrome (837686738).

The spelling of 315541225 in words is "three hundred fifteen million, five hundred forty-one thousand, two hundred twenty-five".