1823000009 has 2 divisors, whose sum is σ = 1823000010. Its totient is φ = 1823000008.

The previous prime is 1822999961. The next prime is 1823000051. The reversal of 1823000009 is 9000003281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1746822025 + 76177984 = 41795^2 + 8728^2 .

It is a cyclic number.

It is not a de Polignac number, because 1823000009 - 2⁸ = 1822999753 is a prime.

It is not a weakly prime, because it can be changed into another prime (1823000089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911500004 + 911500005.

It is an arithmetic number, because the mean of its divisors is an integer number (911500005).

Almost surely, 2^1823000009 is an apocalyptic number.

It is an amenable number.

1823000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1823000009 is an equidigital number, since it uses as much as digits as its factorization.

1823000009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1823000009 is about 42696.6041858132. The cubic root of 1823000009 is about 1221.5996236929.

The spelling of 1823000009 in words is "one billion, eight hundred twenty-three million, nine", and thus it is an aban number.