135798289 has 8 divisors (see below), whose sum is σ = 148260960. Its totient is φ = 123355200.

The previous prime is 135798287. The next prime is 135798317. The reversal of 135798289 is 982897531.

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 135798289 - 2¹ = 135798287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135798281) 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, 12234 + ... + 20524.

It is an arithmetic number, because the mean of its divisors is an integer number (18532620).

Almost surely, 2^135798289 is an apocalyptic number.

It is an amenable number.

135798289 is a deficient number, since it is larger than the sum of its proper divisors (12462671).

135798289 is a wasteful number, since it uses less digits than its factorization.

135798289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791.

The product of its digits is 1088640, while the sum is 52.

The square root of 135798289 is about 11653.2522928151. The cubic root of 135798289 is about 514.0019493030.

The spelling of 135798289 in words is "one hundred thirty-five million, seven hundred ninety-eight thousand, two hundred eighty-nine".