1309801 has 2 divisors, whose sum is σ = 1309802. Its totient is φ = 1309800.

The previous prime is 1309793. The next prime is 1309807. The reversal of 1309801 is 1089031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1299600 + 10201 = 1140^2 + 101^2 .

It is a cyclic number.

It is not a de Polignac number, because 1309801 - 2³ = 1309793 is a prime.

It is not a weakly prime, because it can be changed into another prime (1309807) 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, 654900 + 654901.

It is an arithmetic number, because the mean of its divisors is an integer number (654901).

2^1309801 is an apocalyptic number.

It is an amenable number.

1309801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309801 is an equidigital number, since it uses as much as digits as its factorization.

1309801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1309801 is about 1144.4653773706. The cubic root of 1309801 is about 109.4128773303.

The spelling of 1309801 in words is "one million, three hundred nine thousand, eight hundred one".