138086135 has 16 divisors (see below), whose sum is σ = 188628480. Its totient is φ = 96059040.

The previous prime is 138086131. The next prime is 138086173. The reversal of 138086135 is 531680831.

It is not a de Polignac number, because 138086135 - 2² = 138086131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138086095 and 138086104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138086131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53315 + ... + 55844.

It is an arithmetic number, because the mean of its divisors is an integer number (11789280).

Almost surely, 2^138086135 is an apocalyptic number.

138086135 is a deficient number, since it is larger than the sum of its proper divisors (50542345).

138086135 is a wasteful number, since it uses less digits than its factorization.

138086135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109198.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 138086135 is about 11751.0057016410. The cubic root of 138086135 is about 516.8724186885.

The spelling of 138086135 in words is "one hundred thirty-eight million, eighty-six thousand, one hundred thirty-five".