1042861 has 2 divisors, whose sum is σ = 1042862. Its totient is φ = 1042860.

The previous prime is 1042849. The next prime is 1042897. The reversal of 1042861 is 1682401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 670761 + 372100 = 819^2 + 610^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042861 - 2⁵ = 1042829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521430 + 521431.

It is an arithmetic number, because the mean of its divisors is an integer number (521431).

2^1042861 is an apocalyptic number.

It is an amenable number.

1042861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042861 is an equidigital number, since it uses as much as digits as its factorization.

1042861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1042861 is about 1021.2056599921. The cubic root of 1042861 is about 101.4087607373.

The spelling of 1042861 in words is "one million, forty-two thousand, eight hundred sixty-one".