812249 has 2 divisors, whose sum is σ = 812250. Its totient is φ = 812248.

The previous prime is 812233. The next prime is 812257. The reversal of 812249 is 942218.

812249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 446224 + 366025 = 668^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 812249 - 2⁴ = 812233 is a prime.

It is not a weakly prime, because it can be changed into another prime (812299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406124 + 406125.

It is an arithmetic number, because the mean of its divisors is an integer number (406125).

2⁸¹²²⁴⁹ is an apocalyptic number.

It is an amenable number.

812249 is a deficient number, since it is larger than the sum of its proper divisors (1).

812249 is an equidigital number, since it uses as much as digits as its factorization.

812249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 26.

The square root of 812249 is about 901.2485783623. The cubic root of 812249 is about 93.3031691072.

The spelling of 812249 in words is "eight hundred twelve thousand, two hundred forty-nine".