1811053 has 2 divisors, whose sum is σ = 1811054. Its totient is φ = 1811052.

The previous prime is 1811041. The next prime is 1811059. The reversal of 1811053 is 3501181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1108809 + 702244 = 1053^2 + 838^2 .

It is a cyclic number.

It is not a de Polignac number, because 1811053 - 2¹⁷ = 1679981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1811053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1811059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 905526 + 905527.

It is an arithmetic number, because the mean of its divisors is an integer number (905527).

2^1811053 is an apocalyptic number.

It is an amenable number.

1811053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1811053 is an equidigital number, since it uses as much as digits as its factorization.

1811053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1811053 is about 1345.7536921740. The cubic root of 1811053 is about 121.8925193312.

The spelling of 1811053 in words is "one million, eight hundred eleven thousand, fifty-three".