315225241 has 2 divisors, whose sum is σ = 315225242. Its totient is φ = 315225240.

The previous prime is 315225233. The next prime is 315225277. The reversal of 315225241 is 142522513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296562841 + 18662400 = 17221^2 + 4320^2 .

It is a cyclic number.

It is not a de Polignac number, because 315225241 - 2³ = 315225233 is a prime.

It is not a weakly prime, because it can be changed into another prime (315225221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157612620 + 157612621.

It is an arithmetic number, because the mean of its divisors is an integer number (157612621).

Almost surely, 2^315225241 is an apocalyptic number.

It is an amenable number.

315225241 is a deficient number, since it is larger than the sum of its proper divisors (1).

315225241 is an equidigital number, since it uses as much as digits as its factorization.

315225241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 25.

The square root of 315225241 is about 17754.5836616914. The cubic root of 315225241 is about 680.5713486716.

Adding to 315225241 its reverse (142522513), we get a palindrome (457747754).

It can be divided in two parts, 31522 and 5241, that added together give a palindrome (36763).

The spelling of 315225241 in words is "three hundred fifteen million, two hundred twenty-five thousand, two hundred forty-one".