315133241 has 2 divisors, whose sum is σ = 315133242. Its totient is φ = 315133240.

The previous prime is 315133223. The next prime is 315133243. The reversal of 315133241 is 142331513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293779600 + 21353641 = 17140^2 + 4621^2 .

It is an emirp because it is prime and its reverse (142331513) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315133241 is a prime.

Together with 315133243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (315133243) 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, 157566620 + 157566621.

It is an arithmetic number, because the mean of its divisors is an integer number (157566621).

Almost surely, 2^315133241 is an apocalyptic number.

It is an amenable number.

315133241 is a deficient number, since it is larger than the sum of its proper divisors (1).

315133241 is an equidigital number, since it uses as much as digits as its factorization.

315133241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 315133241 is about 17751.9925923824. The cubic root of 315133241 is about 680.5051328909.

Adding to 315133241 its reverse (142331513), we get a palindrome (457464754).

The spelling of 315133241 in words is "three hundred fifteen million, one hundred thirty-three thousand, two hundred forty-one".