315126241 has 2 divisors, whose sum is σ = 315126242. Its totient is φ = 315126240.

The previous prime is 315126221. The next prime is 315126269. The reversal of 315126241 is 142621513.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164352400 + 150773841 = 12820^2 + 12279^2 .

It is an emirp because it is prime and its reverse (142621513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315126241 - 2⁹ = 315125729 is a prime.

It is not a weakly prime, because it can be changed into another prime (315126221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157563120 + 157563121.

It is an arithmetic number, because the mean of its divisors is an integer number (157563121).

Almost surely, 2^315126241 is an apocalyptic number.

It is an amenable number.

315126241 is a deficient number, since it is larger than the sum of its proper divisors (1).

315126241 is an equidigital number, since it uses as much as digits as its factorization.

315126241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 315126241 is about 17751.7954303220. The cubic root of 315126241 is about 680.5000942061.

Adding to 315126241 its reverse (142621513), we get a palindrome (457747754).

It can be divided in two parts, 3151 and 26241, that added together give a palindrome (29392).

The spelling of 315126241 in words is "three hundred fifteen million, one hundred twenty-six thousand, two hundred forty-one".