819253 has 2 divisors, whose sum is σ = 819254. Its totient is φ = 819252.

The previous prime is 819251. The next prime is 819263. The reversal of 819253 is 352918.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 815409 + 3844 = 903^2 + 62^2 .

It is a cyclic number.

It is not a de Polignac number, because 819253 - 2¹ = 819251 is a prime.

Together with 819251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (819251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409626 + 409627.

It is an arithmetic number, because the mean of its divisors is an integer number (409627).

2⁸¹⁹²⁵³ is an apocalyptic number.

It is an amenable number.

819253 is a deficient number, since it is larger than the sum of its proper divisors (1).

819253 is an equidigital number, since it uses as much as digits as its factorization.

819253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 819253 is about 905.1259580854. The cubic root of 819253 is about 93.5705854561.

The spelling of 819253 in words is "eight hundred nineteen thousand, two hundred fifty-three".