138347204 has 6 divisors (see below), whose sum is σ = 242107614. Its totient is φ = 69173600.

The previous prime is 138347201. The next prime is 138347239. The reversal of 138347204 is 402743831.

It can be written as a sum of positive squares in only one way, i.e., 114532804 + 23814400 = 10702^2 + 4880^2 .

It is not an unprimeable number, because it can be changed into a prime (138347201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17293397 + ... + 17293404.

It is an arithmetic number, because the mean of its divisors is an integer number (40351269).

Almost surely, 2^138347204 is an apocalyptic number.

It is an amenable number.

138347204 is a deficient number, since it is larger than the sum of its proper divisors (103760410).

138347204 is a wasteful number, since it uses less digits than its factorization.

138347204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34586805 (or 34586803 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 138347204 is about 11762.1088245263. The cubic root of 138347204 is about 517.1979508036.

The spelling of 138347204 in words is "one hundred thirty-eight million, three hundred forty-seven thousand, two hundred four".