1812359 has 2 divisors, whose sum is σ = 1812360. Its totient is φ = 1812358.

The previous prime is 1812347. The next prime is 1812361. The reversal of 1812359 is 9532181.

It is a strong prime.

It is an emirp because it is prime and its reverse (9532181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1812359 - 2⁸ = 1812103 is a prime.

Together with 1812361, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1812379) 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, 906179 + 906180.

It is an arithmetic number, because the mean of its divisors is an integer number (906180).

2^1812359 is an apocalyptic number.

1812359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1812359 is an equidigital number, since it uses as much as digits as its factorization.

1812359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 29.

The square root of 1812359 is about 1346.2388346798. The cubic root of 1812359 is about 121.9218123041.

The spelling of 1812359 in words is "one million, eight hundred twelve thousand, three hundred fifty-nine".