138260339 has 8 divisors (see below), whose sum is σ = 158087520. Its totient is φ = 118452096.

The previous prime is 138260327. The next prime is 138260347. The reversal of 138260339 is 933062831.

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

It is a de Polignac number, because none of the positive numbers 2^k-138260339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138260299 and 138260308.

It is not an unprimeable number, because it can be changed into a prime (138260399) 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, 18587 + ... + 24939.

It is an arithmetic number, because the mean of its divisors is an integer number (19760940).

Almost surely, 2^138260339 is an apocalyptic number.

138260339 is a deficient number, since it is larger than the sum of its proper divisors (19827181).

138260339 is an equidigital number, since it uses as much as digits as its factorization.

138260339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9469.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 138260339 is about 11758.4156670871. The cubic root of 138260339 is about 517.0896826090.

The spelling of 138260339 in words is "one hundred thirty-eight million, two hundred sixty thousand, three hundred thirty-nine".