1048216409 has 2 divisors, whose sum is σ = 1048216410. Its totient is φ = 1048216408.

The previous prime is 1048216349. The next prime is 1048216441. The reversal of 1048216409 is 9046128401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1042321225 + 5895184 = 32285^2 + 2428^2 .

It is a cyclic number.

It is not a de Polignac number, because 1048216409 - 2⁸ = 1048216153 is a prime.

It is not a weakly prime, because it can be changed into another prime (1048216459) 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, 524108204 + 524108205.

It is an arithmetic number, because the mean of its divisors is an integer number (524108205).

Almost surely, 2^1048216409 is an apocalyptic number.

It is an amenable number.

1048216409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1048216409 is an equidigital number, since it uses as much as digits as its factorization.

1048216409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1048216409 is about 32376.1703881111. The cubic root of 1048216409 is about 1015.8205273461.

The spelling of 1048216409 in words is "one billion, forty-eight million, two hundred sixteen thousand, four hundred nine".