138535635303 has 18 divisors (see below), whose sum is σ = 216683944776. Its totient is φ = 85252697712.

The previous prime is 138535635281. The next prime is 138535635319. The reversal of 138535635303 is 303536535831.

138535635303 is a `hidden beast` number, since 1 + 3 + 8 + 5 + 3 + 5 + 635 + 3 + 0 + 3 = 666.

It is not a de Polignac number, because 138535635303 - 2⁶ = 138535635239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138535635383) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 45539451 + ... + 45542492.

It is an arithmetic number, because the mean of its divisors is an integer number (12037996932).

Almost surely, 2^138535635303 is an apocalyptic number.

138535635303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

138535635303 is a deficient number, since it is larger than the sum of its proper divisors (78148309473).

138535635303 is a wasteful number, since it uses less digits than its factorization.

138535635303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91081975 (or 91081959 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 45.

The spelling of 138535635303 in words is "one hundred thirty-eight billion, five hundred thirty-five million, six hundred thirty-five thousand, three hundred three".