39138207 has 8 divisors (see below), whose sum is σ = 52701360. Its totient is φ = 25833600.

The previous prime is 39138133. The next prime is 39138223. The reversal of 39138207 is 70283193.

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

It is not a de Polignac number, because 39138207 - 2⁷ = 39138079 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39138227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64282 + ... + 64887.

It is an arithmetic number, because the mean of its divisors is an integer number (6587670).

Almost surely, 2^39138207 is an apocalyptic number.

39138207 is a deficient number, since it is larger than the sum of its proper divisors (13563153).

39138207 is a wasteful number, since it uses less digits than its factorization.

39138207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129273.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 39138207 is about 6256.0536282868. The cubic root of 39138207 is about 339.5212610580.

The spelling of 39138207 in words is "thirty-nine million, one hundred thirty-eight thousand, two hundred seven".