315500033 has 2 divisors, whose sum is σ = 315500034. Its totient is φ = 315500032.

The previous prime is 315499979. The next prime is 315500041. The reversal of 315500033 is 330005513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304397809 + 11102224 = 17447^2 + 3332^2 .

It is a cyclic number.

It is not a de Polignac number, because 315500033 - 2¹² = 315495937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315499978 and 315500014.

It is not a weakly prime, because it can be changed into another prime (315500083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157750016 + 157750017.

It is an arithmetic number, because the mean of its divisors is an integer number (157750017).

Almost surely, 2^315500033 is an apocalyptic number.

It is an amenable number.

315500033 is a deficient number, since it is larger than the sum of its proper divisors (1).

315500033 is an equidigital number, since it uses as much as digits as its factorization.

315500033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 315500033 is about 17762.3205972643. The cubic root of 315500033 is about 680.7690498934.

Adding to 315500033 its reverse (330005513), we get a palindrome (645505546).

The spelling of 315500033 in words is "three hundred fifteen million, five hundred thousand, thirty-three".