138358364 has 6 divisors (see below), whose sum is σ = 242127144. Its totient is φ = 69179180.

The previous prime is 138358351. The next prime is 138358373. The reversal of 138358364 is 463853831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17294792 + ... + 17294799.

It is an arithmetic number, because the mean of its divisors is an integer number (40354524).

Almost surely, 2^138358364 is an apocalyptic number.

It is an amenable number.

138358364 is a deficient number, since it is larger than the sum of its proper divisors (103768780).

138358364 is a wasteful number, since it uses less digits than its factorization.

138358364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34589595 (or 34589593 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 138358364 is about 11762.5832196844. The cubic root of 138358364 is about 517.2118572982.

The spelling of 138358364 in words is "one hundred thirty-eight million, three hundred fifty-eight thousand, three hundred sixty-four".