1845229 has 2 divisors, whose sum is σ = 1845230. Its totient is φ = 1845228.

The previous prime is 1845211. The next prime is 1845271. The reversal of 1845229 is 9225481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 522729 = 1150^2 + 723^2 .

It is a cyclic number.

It is not a de Polignac number, because 1845229 - 2¹⁷ = 1714157 is a prime.

1845229 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1845229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1845209) 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, 922614 + 922615.

It is an arithmetic number, because the mean of its divisors is an integer number (922615).

2^1845229 is an apocalyptic number.

It is an amenable number.

1845229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1845229 is an equidigital number, since it uses as much as digits as its factorization.

1845229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 31.

The square root of 1845229 is about 1358.3920641700. The cubic root of 1845229 is about 122.6544823213.

It can be divided in two parts, 18452 and 29, that added together give a palindrome (18481).

The spelling of 1845229 in words is "one million, eight hundred forty-five thousand, two hundred twenty-nine".