135908386565 has 8 divisors (see below), whose sum is σ = 186388644480. Its totient is φ = 93194322192.

The previous prime is 135908386447. The next prime is 135908386571. The reversal of 135908386565 is 565683809531.

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 135908386565 - 2⁸ = 135908386309 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1941548345 + ... + 1941548414.

It is an arithmetic number, because the mean of its divisors is an integer number (23298580560).

Almost surely, 2^135908386565 is an apocalyptic number.

It is an amenable number.

135908386565 is a deficient number, since it is larger than the sum of its proper divisors (50480257915).

135908386565 is an equidigital number, since it uses as much as digits as its factorization.

135908386565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883096771.

The product of its (nonzero) digits is 23328000, while the sum is 59.

The spelling of 135908386565 in words is "one hundred thirty-five billion, nine hundred eight million, three hundred eighty-six thousand, five hundred sixty-five".