135622521717 has 16 divisors (see below), whose sum is σ = 188783602560. Its totient is φ = 86442036032.

The previous prime is 135622521709. The next prime is 135622521733. The reversal of 135622521717 is 717125226531.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 135622521717 - 2³ = 135622521709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135622521737) 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, 332238 + ... + 617759.

It is an arithmetic number, because the mean of its divisors is an integer number (11798975160).

Almost surely, 2^135622521717 is an apocalyptic number.

It is an amenable number.

135622521717 is a deficient number, since it is larger than the sum of its proper divisors (53161080843).

135622521717 is a wasteful number, since it uses less digits than its factorization.

135622521717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952092.

The product of its digits is 176400, while the sum is 42.

The spelling of 135622521717 in words is "one hundred thirty-five billion, six hundred twenty-two million, five hundred twenty-one thousand, seven hundred seventeen".