138342339 has 12 divisors (see below), whose sum is σ = 200014776. Its totient is φ = 92141952.

The previous prime is 138342319. The next prime is 138342341. The reversal of 138342339 is 933243831.

It is not a de Polignac number, because 138342339 - 2¹⁵ = 138309571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138342319) 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 11 ways as a sum of consecutive naturals, for example, 3859 + ... + 17075.

It is an arithmetic number, because the mean of its divisors is an integer number (16667898).

Almost surely, 2^138342339 is an apocalyptic number.

138342339 is a deficient number, since it is larger than the sum of its proper divisors (61672437).

138342339 is a wasteful number, since it uses less digits than its factorization.

138342339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14386 (or 14383 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 138342339 is about 11761.9020145553. The cubic root of 138342339 is about 517.1918882849.

The spelling of 138342339 in words is "one hundred thirty-eight million, three hundred forty-two thousand, three hundred thirty-nine".