1818049 has 2 divisors, whose sum is σ = 1818050. Its totient is φ = 1818048.

The previous prime is 1818023. The next prime is 1818067. The reversal of 1818049 is 9408181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1803649 + 14400 = 1343^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 1818049 - 2⁵ = 1818017 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1818049.

It is not a weakly prime, because it can be changed into another prime (1818079) 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, 909024 + 909025.

It is an arithmetic number, because the mean of its divisors is an integer number (909025).

2^1818049 is an apocalyptic number.

It is an amenable number.

1818049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1818049 is an equidigital number, since it uses as much as digits as its factorization.

1818049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 1818049 is about 1348.3504737271. The cubic root of 1818049 is about 122.0492724025.

The spelling of 1818049 in words is "one million, eight hundred eighteen thousand, forty-nine".