135538355365 has 32 divisors (see below), whose sum is σ = 193710412800. Its totient is φ = 90963073152.

The previous prime is 135538355363. The next prime is 135538355383. The reversal of 135538355365 is 563553835531.

It is a happy number.

It is not a de Polignac number, because 135538355365 - 2¹ = 135538355363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135538355363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 760152 + ... + 921361.

It is an arithmetic number, because the mean of its divisors is an integer number (6053450400).

Almost surely, 2^135538355365 is an apocalyptic number.

It is an amenable number.

135538355365 is a deficient number, since it is larger than the sum of its proper divisors (58172057435).

135538355365 is an equidigital number, since it uses as much as digits as its factorization.

135538355365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681586 (or 1681572 counting only the distinct ones).

The product of its digits is 12150000, while the sum is 52.

The spelling of 135538355365 in words is "one hundred thirty-five billion, five hundred thirty-eight million, three hundred fifty-five thousand, three hundred sixty-five".