315220441 has 2 divisors, whose sum is σ = 315220442. Its totient is φ = 315220440.

The previous prime is 315220439. The next prime is 315220481. The reversal of 315220441 is 144022513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263380441 + 51840000 = 16229^2 + 7200^2 .

It is a cyclic number.

It is not a de Polignac number, because 315220441 - 2¹ = 315220439 is a prime.

Together with 315220439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (315220481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157610220 + 157610221.

It is an arithmetic number, because the mean of its divisors is an integer number (157610221).

Almost surely, 2^315220441 is an apocalyptic number.

It is an amenable number.

315220441 is a deficient number, since it is larger than the sum of its proper divisors (1).

315220441 is an equidigital number, since it uses as much as digits as its factorization.

315220441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 315220441 is about 17754.4484848164. The cubic root of 315220441 is about 680.5678942538.

Adding to 315220441 its reverse (144022513), we get a palindrome (459242954).

The spelling of 315220441 in words is "three hundred fifteen million, two hundred twenty thousand, four hundred forty-one".