259198129 has 8 divisors (see below), whose sum is σ = 260789760. Its totient is φ = 257611200.

The previous prime is 259198123. The next prime is 259198139. The reversal of 259198129 is 921891952.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259198129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259198123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209944 + ... + 211174.

It is an arithmetic number, because the mean of its divisors is an integer number (32598720).

Almost surely, 2^259198129 is an apocalyptic number.

It is an amenable number.

259198129 is a deficient number, since it is larger than the sum of its proper divisors (1591631).

259198129 is a wasteful number, since it uses less digits than its factorization.

259198129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351.

The product of its digits is 116640, while the sum is 46.

The square root of 259198129 is about 16099.6313311827. The cubic root of 259198129 is about 637.5936073746.

The spelling of 259198129 in words is "two hundred fifty-nine million, one hundred ninety-eight thousand, one hundred twenty-nine".