1299841 has 2 divisors, whose sum is σ = 1299842. Its totient is φ = 1299840.

The previous prime is 1299833. The next prime is 1299853. The reversal of 1299841 is 1489921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 802816 + 497025 = 896^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 1299841 - 2³ = 1299833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1299797 and 1299806.

It is not a weakly prime, because it can be changed into another prime (1299811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649920 + 649921.

It is an arithmetic number, because the mean of its divisors is an integer number (649921).

2^1299841 is an apocalyptic number.

It is an amenable number.

1299841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299841 is an equidigital number, since it uses as much as digits as its factorization.

1299841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 34.

The square root of 1299841 is about 1140.1056968545. The cubic root of 1299841 is about 109.1348385999.

The spelling of 1299841 in words is "one million, two hundred ninety-nine thousand, eight hundred forty-one".