1053809 has 2 divisors, whose sum is σ = 1053810. Its totient is φ = 1053808.

The previous prime is 1053769. The next prime is 1053817. The reversal of 1053809 is 9083501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 717409 + 336400 = 847^2 + 580^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053809 - 2²⁰ = 5233 is a prime.

It is a super-2 number, since 2×1053809² = 2221026816962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1053509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526904 + 526905.

It is an arithmetic number, because the mean of its divisors is an integer number (526905).

2^1053809 is an apocalyptic number.

It is an amenable number.

1053809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053809 is an equidigital number, since it uses as much as digits as its factorization.

1053809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1053809 is about 1026.5519957606. The cubic root of 1053809 is about 101.7623906576.

The spelling of 1053809 in words is "one million, fifty-three thousand, eight hundred nine".