138083543 has 8 divisors (see below), whose sum is σ = 149047248. Its totient is φ = 127168704.

The previous prime is 138083527. The next prime is 138083549. The reversal of 138083543 is 345380831.

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

It is not a de Polignac number, because 138083543 - 2⁴ = 138083527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138083549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6230 + ... + 17747.

It is an arithmetic number, because the mean of its divisors is an integer number (18630906).

Almost surely, 2^138083543 is an apocalyptic number.

138083543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

138083543 is a deficient number, since it is larger than the sum of its proper divisors (10963705).

138083543 is a wasteful number, since it uses less digits than its factorization.

138083543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24433.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 138083543 is about 11750.8954126909. The cubic root of 138083543 is about 516.8691846160.

The spelling of 138083543 in words is "one hundred thirty-eight million, eighty-three thousand, five hundred forty-three".