138960443 has 8 divisors (see below), whose sum is σ = 140034048. Its totient is φ = 137891304.

The previous prime is 138960413. The next prime is 138960449. The reversal of 138960443 is 344069831.

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

It is a cyclic number.

It is not a de Polignac number, because 138960443 - 2¹⁴ = 138944059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138960397 and 138960406.

It is not an unprimeable number, because it can be changed into a prime (138960449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84596 + ... + 86222.

It is an arithmetic number, because the mean of its divisors is an integer number (17504256).

Almost surely, 2^138960443 is an apocalyptic number.

138960443 is a deficient number, since it is larger than the sum of its proper divisors (1073605).

138960443 is a wasteful number, since it uses less digits than its factorization.

138960443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 138960443 is about 11788.1484127067. The cubic root of 138960443 is about 517.9610031614.

The spelling of 138960443 in words is "one hundred thirty-eight million, nine hundred sixty thousand, four hundred forty-three".