138385035 has 24 divisors (see below), whose sum is σ = 243251424. Its totient is φ = 72764160.

The previous prime is 138385033. The next prime is 138385073. The reversal of 138385035 is 530583831.

It is not a de Polignac number, because 138385035 - 2¹ = 138385033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138385033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18462 + ... + 24851.

It is an arithmetic number, because the mean of its divisors is an integer number (10135476).

Almost surely, 2^138385035 is an apocalyptic number.

138385035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138385035 is a deficient number, since it is larger than the sum of its proper divisors (104866389).

138385035 is a wasteful number, since it uses less digits than its factorization.

138385035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43395 (or 43392 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 138385035 is about 11763.7168871067. The cubic root of 138385035 is about 517.2450890470.

The spelling of 138385035 in words is "one hundred thirty-eight million, three hundred eighty-five thousand, thirty-five".