1122841 has 2 divisors, whose sum is σ = 1122842. Its totient is φ = 1122840.

The previous prime is 1122811. The next prime is 1122857. The reversal of 1122841 is 1482211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 687241 + 435600 = 829^2 + 660^2 .

It is an emirp because it is prime and its reverse (1482211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122841 is a prime.

It is a super-2 number, since 2×1122841² = 2521543822562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1122811) 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, 561420 + 561421.

It is an arithmetic number, because the mean of its divisors is an integer number (561421).

2^1122841 is an apocalyptic number.

It is an amenable number.

1122841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122841 is an equidigital number, since it uses as much as digits as its factorization.

1122841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128, while the sum is 19.

The square root of 1122841 is about 1059.6419206506. The cubic root of 1122841 is about 103.9376166802.

The spelling of 1122841 in words is "one million, one hundred twenty-two thousand, eight hundred forty-one".