138038935 has 4 divisors (see below), whose sum is σ = 165646728. Its totient is φ = 110431144.

The previous prime is 138038921. The next prime is 138038941. The reversal of 138038935 is 539830831.

It is a happy number.

138038935 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138038935 - 2⁵ = 138038903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13803889 + ... + 13803898.

It is an arithmetic number, because the mean of its divisors is an integer number (41411682).

Almost surely, 2^138038935 is an apocalyptic number.

138038935 is a deficient number, since it is larger than the sum of its proper divisors (27607793).

138038935 is an equidigital number, since it uses as much as digits as its factorization.

138038935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27607792.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 138038935 is about 11748.9971912500. The cubic root of 138038935 is about 516.8135202857.

The spelling of 138038935 in words is "one hundred thirty-eight million, thirty-eight thousand, nine hundred thirty-five".