1111853 has 2 divisors, whose sum is σ = 1111854. Its totient is φ = 1111852.

The previous prime is 1111841. The next prime is 1111867. The reversal of 1111853 is 3581111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 574564 + 537289 = 758^2 + 733^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111853 - 2²⁰ = 63277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555926 + 555927.

It is an arithmetic number, because the mean of its divisors is an integer number (555927).

2^1111853 is an apocalyptic number.

It is an amenable number.

1111853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111853 is an equidigital number, since it uses as much as digits as its factorization.

1111853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 20.

The square root of 1111853 is about 1054.4444034656. Note that the first 4 decimals coincide. The cubic root of 1111853 is about 103.5974639491.

Adding to 1111853 its reverse (3581111), we get a palindrome (4692964).

The spelling of 1111853 in words is "one million, one hundred eleven thousand, eight hundred fifty-three".