1044215009 has 2 divisors, whose sum is σ = 1044215010. Its totient is φ = 1044215008.

The previous prime is 1044214979. The next prime is 1044215041. The reversal of 1044215009 is 9005124401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 888040000 + 156175009 = 29800^2 + 12497^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044215009 - 2⁸ = 1044214753 is a prime.

It is not a weakly prime, because it can be changed into another prime (1044215069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522107504 + 522107505.

It is an arithmetic number, because the mean of its divisors is an integer number (522107505).

Almost surely, 2^1044215009 is an apocalyptic number.

It is an amenable number.

1044215009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044215009 is an equidigital number, since it uses as much as digits as its factorization.

1044215009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1044215009 is about 32314.3158522658. The cubic root of 1044215009 is about 1014.5263011598.

The spelling of 1044215009 in words is "one billion, forty-four million, two hundred fifteen thousand, nine".