812259 has 12 divisors (see below), whose sum is σ = 1340976. Its totient is φ = 464112.

The previous prime is 812257. The next prime is 812267. The reversal of 812259 is 952218.

812259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 812259 - 2¹ = 812257 is a prime.

812259 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 812259.

It is not an unprimeable number, because it can be changed into a prime (812257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6384 + ... + 6509.

It is an arithmetic number, because the mean of its divisors is an integer number (111748).

2⁸¹²²⁵⁹ is an apocalyptic number.

812259 is a deficient number, since it is larger than the sum of its proper divisors (528717).

812259 is a wasteful number, since it uses less digits than its factorization.

812259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12906 (or 12903 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 812259 is about 901.2541262041. The cubic root of 812259 is about 93.3035520062.

It can be divided in two parts, 81225 and 9, that multiplied together give a square (731025 = 855²).

The spelling of 812259 in words is "eight hundred twelve thousand, two hundred fifty-nine".