1290544799 has 2 divisors, whose sum is σ = 1290544800. Its totient is φ = 1290544798.

The previous prime is 1290544769. The next prime is 1290544811. The reversal of 1290544799 is 9974450921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1290544799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1290544769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645272399 + 645272400.

It is an arithmetic number, because the mean of its divisors is an integer number (645272400).

Almost surely, 2^1290544799 is an apocalyptic number.

1290544799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1290544799 is an equidigital number, since it uses as much as digits as its factorization.

1290544799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 1290544799 is about 35924.1534207836. The cubic root of 1290544799 is about 1088.7404576823.

The spelling of 1290544799 in words is "one billion, two hundred ninety million, five hundred forty-four thousand, seven hundred ninety-nine".