1126861 has 2 divisors, whose sum is σ = 1126862. Its totient is φ = 1126860.

The previous prime is 1126859. The next prime is 1126889. The reversal of 1126861 is 1686211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 866761 + 260100 = 931^2 + 510^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126861 - 2¹ = 1126859 is a prime.

Together with 1126859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1126831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563430 + 563431.

It is an arithmetic number, because the mean of its divisors is an integer number (563431).

2^1126861 is an apocalyptic number.

It is an amenable number.

1126861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126861 is an equidigital number, since it uses as much as digits as its factorization.

1126861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 25.

The square root of 1126861 is about 1061.5370930872. The cubic root of 1126861 is about 104.0615082405.

The spelling of 1126861 in words is "one million, one hundred twenty-six thousand, eight hundred sixty-one".