259348661 has 8 divisors (see below), whose sum is σ = 304689504. Its totient is φ = 217635120.

The previous prime is 259348643. The next prime is 259348703. The reversal of 259348661 is 166843952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 259348661 - 2⁶ = 259348597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259348631) 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 in 7 ways as a sum of consecutive naturals, for example, 906671 + ... + 906956.

It is an arithmetic number, because the mean of its divisors is an integer number (38086188).

Almost surely, 2^259348661 is an apocalyptic number.

It is an amenable number.

259348661 is a deficient number, since it is larger than the sum of its proper divisors (45340843).

259348661 is a wasteful number, since it uses less digits than its factorization.

259348661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813651.

The product of its digits is 311040, while the sum is 44.

The square root of 259348661 is about 16104.3056664980. The cubic root of 259348661 is about 637.7170131866.

The spelling of 259348661 in words is "two hundred fifty-nine million, three hundred forty-eight thousand, six hundred sixty-one".