240559009 has 2 divisors, whose sum is σ = 240559010. Its totient is φ = 240559008.

The previous prime is 240559003. The next prime is 240559021. The reversal of 240559009 is 900955042.

240559009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189750625 + 50808384 = 13775^2 + 7128^2 .

It is a cyclic number.

It is not a de Polignac number, because 240559009 - 2¹¹ = 240556961 is a prime.

It is a super-2 number, since 2×240559009² = 115737273622124162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240559003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120279504 + 120279505.

It is an arithmetic number, because the mean of its divisors is an integer number (120279505).

Almost surely, 2^240559009 is an apocalyptic number.

It is an amenable number.

240559009 is a deficient number, since it is larger than the sum of its proper divisors (1).

240559009 is an equidigital number, since it uses as much as digits as its factorization.

240559009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 240559009 is about 15509.9648291026. The cubic root of 240559009 is about 621.9286189940.

The spelling of 240559009 in words is "two hundred forty million, five hundred fifty-nine thousand, nine".