259729369 has 2 divisors, whose sum is σ = 259729370. Its totient is φ = 259729368.

The previous prime is 259729367. The next prime is 259729429. The reversal of 259729369 is 963927952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150798400 + 108930969 = 12280^2 + 10437^2 .

It is a cyclic number.

It is not a de Polignac number, because 259729369 - 2¹ = 259729367 is a prime.

It is a super-2 number, since 2×259729369² = 134918690242276322, which contains 22 as substring.

Together with 259729367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (259729361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129864684 + 129864685.

It is an arithmetic number, because the mean of its divisors is an integer number (129864685).

Almost surely, 2^259729369 is an apocalyptic number.

It is an amenable number.

259729369 is a deficient number, since it is larger than the sum of its proper divisors (1).

259729369 is an equidigital number, since it uses as much as digits as its factorization.

259729369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 52.

The square root of 259729369 is about 16116.1214006348. The cubic root of 259729369 is about 638.0289038376.

The spelling of 259729369 in words is "two hundred fifty-nine million, seven hundred twenty-nine thousand, three hundred sixty-nine".