135842501009217 has 16 divisors (see below), whose sum is σ = 182934626843520. Its totient is φ = 89656197648000.

The previous prime is 135842501009213. The next prime is 135842501009231. The reversal of 135842501009217 is 712900105248531.

It is a happy number.

It is not a de Polignac number, because 135842501009217 - 2² = 135842501009213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135842501009213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18962509 + ... + 25124922.

It is an arithmetic number, because the mean of its divisors is an integer number (11433414177720).

Almost surely, 2^{135842501009217} is an apocalyptic number.

It is an amenable number.

135842501009217 is a deficient number, since it is larger than the sum of its proper divisors (47092125834303).

135842501009217 is a wasteful number, since it uses less digits than its factorization.

135842501009217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44097704.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 135842501009217 in words is "one hundred thirty-five trillion, eight hundred forty-two billion, five hundred one million, nine thousand, two hundred seventeen".