1299104641 has 2 divisors, whose sum is σ = 1299104642. Its totient is φ = 1299104640.

The previous prime is 1299104633. The next prime is 1299104647. The reversal of 1299104641 is 1464019921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 949564225 + 349540416 = 30815^2 + 18696^2 .

It is a cyclic number.

It is not a de Polignac number, because 1299104641 - 2³ = 1299104633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1299104641.

It is not a weakly prime, because it can be changed into another prime (1299104647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649552320 + 649552321.

It is an arithmetic number, because the mean of its divisors is an integer number (649552321).

Almost surely, 2^1299104641 is an apocalyptic number.

It is an amenable number.

1299104641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299104641 is an equidigital number, since it uses as much as digits as its factorization.

1299104641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1299104641 is about 36043.0942206687. The cubic root of 1299104641 is about 1091.1422643769.

The spelling of 1299104641 in words is "one billion, two hundred ninety-nine million, one hundred four thousand, six hundred forty-one".