135806032105 has 8 divisors (see below), whose sum is σ = 162992453832. Its totient is φ = 108628015488.

The previous prime is 135806032073. The next prime is 135806032111. The reversal of 135806032105 is 501230608531.

It can be written as a sum of positive squares in 4 ways, for example, as 18085677289 + 117720354816 = 134483^2 + 343104^2 .

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 135806032105 - 2⁵ = 135806032073 is a prime.

It is a super-2 number, since 2×135806032105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2065674 + ... + 2130403.

It is an arithmetic number, because the mean of its divisors is an integer number (20374056729).

Almost surely, 2^135806032105 is an apocalyptic number.

It is an amenable number.

135806032105 is a deficient number, since it is larger than the sum of its proper divisors (27186421727).

135806032105 is an equidigital number, since it uses as much as digits as its factorization.

135806032105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202555.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 135806032105 in words is "one hundred thirty-five billion, eight hundred six million, thirty-two thousand, one hundred five".