138385337 has 8 divisors (see below), whose sum is σ = 140156160. Its totient is φ = 136624320.

The previous prime is 138385307. The next prime is 138385339. The reversal of 138385337 is 733583831.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138385337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138385294 and 138385303.

It is not an unprimeable number, because it can be changed into a prime (138385339) 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, 28364 + ... + 32882.

It is an arithmetic number, because the mean of its divisors is an integer number (17519520).

Almost surely, 2^138385337 is an apocalyptic number.

It is an amenable number.

138385337 is a deficient number, since it is larger than the sum of its proper divisors (1770823).

138385337 is a wasteful number, since it uses less digits than its factorization.

138385337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4903.

The product of its digits is 181440, while the sum is 41.

The square root of 138385337 is about 11763.7297231788. The cubic root of 138385337 is about 517.2454653109.

The spelling of 138385337 in words is "one hundred thirty-eight million, three hundred eighty-five thousand, three hundred thirty-seven".