135355638 has 16 divisors (see below), whose sum is σ = 295321536. Its totient is φ = 41016840.

The previous prime is 135355613. The next prime is 135355669. The reversal of 135355638 is 836553531.

It is a happy number.

It is a super-2 number, since 2×135355638² = 36642297476774088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135355596 and 135355605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025356 + ... + 1025487.

It is an arithmetic number, because the mean of its divisors is an integer number (18457596).

Almost surely, 2^135355638 is an apocalyptic number.

135355638 is an abundant number, since it is smaller than the sum of its proper divisors (159965898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135355638 is a wasteful number, since it uses less digits than its factorization.

135355638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050859.

The product of its digits is 162000, while the sum is 39.

The square root of 135355638 is about 11634.2441954774. The cubic root of 135355638 is about 513.4428574797.

The spelling of 135355638 in words is "one hundred thirty-five million, three hundred fifty-five thousand, six hundred thirty-eight".