1284246401 has 2 divisors, whose sum is σ = 1284246402. Its totient is φ = 1284246400.

The previous prime is 1284246389. The next prime is 1284246407. The reversal of 1284246401 is 1046424821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722319376 + 561927025 = 26876^2 + 23705^2 .

It is a cyclic number.

It is not a de Polignac number, because 1284246401 - 2¹⁰ = 1284245377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1284246407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642123200 + 642123201.

It is an arithmetic number, because the mean of its divisors is an integer number (642123201).

Almost surely, 2^1284246401 is an apocalyptic number.

It is an amenable number.

1284246401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284246401 is an equidigital number, since it uses as much as digits as its factorization.

1284246401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 1284246401 is about 35836.3837600838. The cubic root of 1284246401 is about 1086.9663990051.

The spelling of 1284246401 in words is "one billion, two hundred eighty-four million, two hundred forty-six thousand, four hundred one".