138108046 has 8 divisors (see below), whose sum is σ = 207499680. Its totient is φ = 68941488.

The previous prime is 138108023. The next prime is 138108053. The reversal of 138108046 is 640801831.

138108046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 138107999 and 138108017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54726 + ... + 57193.

It is an arithmetic number, because the mean of its divisors is an integer number (25937460).

Almost surely, 2^138108046 is an apocalyptic number.

138108046 is a deficient number, since it is larger than the sum of its proper divisors (69391634).

138108046 is a wasteful number, since it uses less digits than its factorization.

138108046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112538.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 138108046 is about 11751.9379678417. The cubic root of 138108046 is about 516.8997557140.

Adding to 138108046 its reverse (640801831), we get a palindrome (778909877).

The spelling of 138108046 in words is "one hundred thirty-eight million, one hundred eight thousand, forty-six".