138354716 has 12 divisors (see below), whose sum is σ = 242228280. Its totient is φ = 69146640.

The previous prime is 138354707. The next prime is 138354731. The reversal of 138354716 is 617453831.

It is a self number, because there is not a number n which added to its sum of digits gives 138354716.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4655 + ... + 17273.

It is an arithmetic number, because the mean of its divisors is an integer number (20185690).

Almost surely, 2^138354716 is an apocalyptic number.

It is an amenable number.

138354716 is a deficient number, since it is larger than the sum of its proper divisors (103873564).

138354716 is a wasteful number, since it uses less digits than its factorization.

138354716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15364 (or 15362 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 138354716 is about 11762.4281506839. The cubic root of 138354716 is about 517.2073116016.

The spelling of 138354716 in words is "one hundred thirty-eight million, three hundred fifty-four thousand, seven hundred sixteen".