259214009 has 2 divisors, whose sum is σ = 259214010. Its totient is φ = 259214008.

The previous prime is 259214003. The next prime is 259214041. The reversal of 259214009 is 900412952.

It is an a-pointer prime, because the next prime (259214041) can be obtained adding 259214009 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143328784 + 115885225 = 11972^2 + 10765^2 .

It is a cyclic number.

It is not a de Polignac number, because 259214009 - 2⁴ = 259213993 is a prime.

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 (259214003) 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, 129607004 + 129607005.

It is an arithmetic number, because the mean of its divisors is an integer number (129607005).

Almost surely, 2^259214009 is an apocalyptic number.

It is an amenable number.

259214009 is a deficient number, since it is larger than the sum of its proper divisors (1).

259214009 is an equidigital number, since it uses as much as digits as its factorization.

259214009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 259214009 is about 16100.1245026242. The cubic root of 259214009 is about 637.6066280186.

The spelling of 259214009 in words is "two hundred fifty-nine million, two hundred fourteen thousand, nine".