138008935 has 8 divisors (see below), whose sum is σ = 166201776. Its totient is φ = 110013120.

The previous prime is 138008917. The next prime is 138008939. The reversal of 138008935 is 539800831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138008935 - 2⁵ = 138008903 is a prime.

It is a super-2 number, since 2×138008935² = 38092932279668450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138008894 and 138008903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138008939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47709 + ... + 50518.

It is an arithmetic number, because the mean of its divisors is an integer number (20775222).

Almost surely, 2^138008935 is an apocalyptic number.

138008935 is a deficient number, since it is larger than the sum of its proper divisors (28192841).

138008935 is an equidigital number, since it uses as much as digits as its factorization.

138008935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98513.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 138008935 is about 11747.7204171703. The cubic root of 138008935 is about 516.7760778812.

The spelling of 138008935 in words is "one hundred thirty-eight million, eight thousand, nine hundred thirty-five".