1019801 has 2 divisors, whose sum is σ = 1019802. Its totient is φ = 1019800.

The previous prime is 1019783. The next prime is 1019819. The reversal of 1019801 is 1089101.

It is a balanced prime because it is at equal distance from previous prime (1019783) and next prime (1019819).

It can be written as a sum of positive squares in only one way, i.e., 808201 + 211600 = 899^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1019801 - 2¹⁰ = 1018777 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1019861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509900 + 509901.

It is an arithmetic number, because the mean of its divisors is an integer number (509901).

2^1019801 is an apocalyptic number.

It is an amenable number.

1019801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1019801 is an equidigital number, since it uses as much as digits as its factorization.

1019801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 1019801 is about 1009.8519693500. The cubic root of 1019801 is about 100.6557241930.

The spelling of 1019801 in words is "one million, nineteen thousand, eight hundred one".