1050504209 has 2 divisors, whose sum is σ = 1050504210. Its totient is φ = 1050504208.

The previous prime is 1050504199. The next prime is 1050504227. The reversal of 1050504209 is 9024050501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 679749184 + 370755025 = 26072^2 + 19255^2 .

It is an emirp because it is prime and its reverse (9024050501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1050504209 - 2⁸ = 1050503953 is a prime.

It is a super-2 number, since 2×1050504209² = 2207118186253431362, which contains 22 as substring.

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 (1050504269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525252104 + 525252105.

It is an arithmetic number, because the mean of its divisors is an integer number (525252105).

Almost surely, 2^1050504209 is an apocalyptic number.

It is an amenable number.

1050504209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1050504209 is an equidigital number, since it uses as much as digits as its factorization.

1050504209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1050504209 is about 32411.4826720408. The cubic root of 1050504209 is about 1016.5590216346.

The spelling of 1050504209 in words is "one billion, fifty million, five hundred four thousand, two hundred nine".