815352233 has 2 divisors, whose sum is σ = 815352234. Its totient is φ = 815352232.

The previous prime is 815352203. The next prime is 815352247. The reversal of 815352233 is 332253518.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 431309824 + 384042409 = 20768^2 + 19597^2 .

It is a cyclic number.

It is not a de Polignac number, because 815352233 - 2¹⁰ = 815351209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 815352233.

It is not a weakly prime, because it can be changed into another prime (815352203) 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, 407676116 + 407676117.

It is an arithmetic number, because the mean of its divisors is an integer number (407676117).

Almost surely, 2^815352233 is an apocalyptic number.

It is an amenable number.

815352233 is a deficient number, since it is larger than the sum of its proper divisors (1).

815352233 is an equidigital number, since it uses as much as digits as its factorization.

815352233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 815352233 is about 28554.3732727581. The cubic root of 815352233 is about 934.2184105745.

The spelling of 815352233 in words is "eight hundred fifteen million, three hundred fifty-two thousand, two hundred thirty-three".